Lets not get carried away...

91LX2Bfast · 09-09-2002, 09:12 AM

In several posts I have been reading that H or X-pipes are going to add 20+hp on a stock car, etc. Lets not get too carried away here people. This board prides itself on having members that give info only when they know it's helpful and correct. Passing bad or misleading info doesn't help anyone.
Yes, while and aftermarket H- or X-pipe helps release some nice HP for the money, I find it very hard to believe to suddenly everyone is gaining 20+ hp. Its a great mod for sure, but we don't want memebers walking around telling others haw their Mustang suddenly has 280+ hp because they install a H-pipe on their stock 99GT. I am sure 20HP+ can be found on a stock exhuast, superchaged GT, but thats not the cars asking the questions here.
From dyno charts I have seen, they release anywhere from 6-12hp on a mostly stock car. And 12Hp is usually on the higher side.
I only used this specific application an example, its not meant to make any people feel bad in any way and what not. I just know that a lot of sh1t went down on another board because suddenly people had "300hp" cars with a set of mufflers, a cold air intake, and underdrive pulleys, and alot of great members left the site.

GodStang · 09-09-2002, 10:49 AM

I agree. You read the adds about a product that gave as much as 30 rwhp. You read the small print and it is like a 2002 Turbo diesel Truck that got that much. That does nothing for our mustangs that get like 6rwhp for the same product. People buy these products looking for these gains and do not get it and waste $200. I think adds need to be more specific.

Titan · 09-09-2002, 12:02 PM

I don't think he had adds in mind when he wrote that thread...

Illini · 09-09-2002, 01:13 PM

Well guys, you wouldn't believe this, but I just put some wd-40 on my acces. belt and it freed up like at least 10 hp. Or so it felt like. I think tonight I'm goin top off the brake light fluid and grease the antenna for better reception and less air resistance. I bet it would pick up .1 in the qtr. Maybe even put in new muffler bearings, the old ones are causing too much backpressure.
Like you I'm kinda gettin tired of all this magazine ad. hp sh1t. If I beleived what the ads say I'd have over 300 hp at the crank, riiiight. Hell you can't blame em, some people on here seek professional help to install underdrives pulleys, so how could they comprehend that the pulleys could never give them 15 ponies like the neat little ads says they do. Before the flamethrowers get broke out, usually the people that know very little about vehicle performance are the ones to spout off about how they gained "like" huge amounts of hp from some meager bolt-on.

DH

GodStang · 09-09-2002, 02:07 PM

I know he meant people and not ads but I added to his statement.

If I went by ads or by what people say I would have about 200hp I bet I have no more than about 155-160hp

The Deuce · 09-09-2002, 02:25 PM

Seems like this whole thing came about from an H-pipe hp number. The 96-98 gt's are terribly choked by the exhaust, so maybe we should get some actual dyno numbers to clear this up. My exhaust is stock, and if someone wants to pay for the dyno/h-pipe install I'll post some numbers.

There seems to be a deeper problem than this from the tone I'm reading in some of these posts.

Maybe its just because its Monday.

91LX2Bfast · 09-09-2002, 02:46 PM

I have long ago given up on manufactures adsand their claimed HP gains.

"The 96-98 gt's are terribly choked by the exhaust..."
I think you mean terribly choked by small, bad flowing exhaust ports in the head. They are restricted no more then any other Mustang. In fact, since they have the same 2 1/4" setup that the the 99+GT's have, you would assume that the newer GT's have a more restricted setup since they have a higher output engine requiring more breathing.
I meant exactly what I said. Don't tell people they will gain 20-30peak HP on a stock GT from H-pipe and catback install. Thats it.

The Deuce · 09-09-2002, 03:18 PM

I was under the impression that the cats flowed better on the newer cars. If they are the same then there is a LOT of bad information out there. I know my heads don't flow for crap, and I wouldn't tell anyone that they will pick up 9% more hp (20 on a a 215 motor) by changing one part.

Illini · 09-09-2002, 10:43 PM

sorry, didn't know my tone was being monitored by the internet police. I just get phucking tired of people sounding like they are the last word in vehicle performance, when they wouldn't know the difference between a wrist pin and a sparkplug. If someone doesn't, thats fine but when they act like they do it just makes em look like pillow biters. Thats all I meant by my post, oh and the fact that mag ads take hp gains for liberty and always claim the highest gain even if it's from another application. Like Godstang said in the little print it's for another vehicle, but they lead you to think the gains are from a mustang, camaro, VW whatever, you get my point. And to reiterate I am very limited in my experience with mustangs, so don't make it sound like I think I know all. I know that a catback or even an offroad h,x-pipe will not give 20-30hp at the wheels on a naturally aspirated, mildly modded engine. MY .02 CENTS

DH

P.S. Monday has no effect on me I'm always a bastard.

tireburner163 · 09-09-2002, 11:02 PM

Yes a h-pipe and cat-back can add 20hp. Considering that you are going from a 2 1/4" pipe with 6 cats, to a 2 1/2" pipe with no cats.

The Deuce · 09-10-2002, 01:30 AM

All I'm saying is that some people got really mad about an honest mistake. Do we actually know what the net RWHP is for each specific mod? It's not like anyone is claiming 20 for a k&n. Well, maybe some Cobra guys.

Seems like you will see a big increase in flow from removing all those cats. Call me crazy, but if its not more than 6hp it ain't worth the effort.

surfbeast · 09-10-2002, 07:58 AM

If we were all master mechs and had a dyno then we could settle all the questions on add-on HP gains. Also, every car is different and gets a different amount of gain/loss from each MOD. Of course a new car guy that just spent a bunch of money on a part wishes he got the max hp gain stated in the adds for the part, hell, what else does he have to go on? Should he tell his friends " I just spent $500 buck and got 5 rwhp! " ? Part of owning a performance car is having fun adding to it, that's why even the seasoned veterans that know these parts don't give stated results still use them. Give the average guy that don't know what he is getting a break! We all like to DREAM BIG! And when money is tight ( always ) 20HP sound a whole lot better than 6. If the new guys want to dillude themselves thinking they have 300+ Hp with a few bolt on let them, They will see what they really have when it matters and when they become more knowledgeable. If you don't like them saying that then teach them, don't rag them out!

tireburner163 · 09-10-2002, 09:09 AM

Quote:

Originally posted by The Deuce
Call me crazy, but if its not more than 6hp it ain't worth the effort.

Get the H-pipe dude, it's worth a lot more than 6hp.

Illini · 09-10-2002, 09:24 AM

I hope that you don't beleive that I think that I have 300 at the crank reread my first post. Notice the "riiiight" after the 300 hp sentence, that my friend is sarcasm. You know like in Austin Powers, Dr evil always said Riiight. I was kidding so don't go off saying Illini says he's got 300hp and start sh1t, cuase I never said it seriously. Hence the"riiiight" at the end of the sentence. Tireburner reread my post, you got confused. The way it is worded implies that a catback alone would not produce 20-30hp at the wheels, nor would a offroad pipe alone produce that result with a stock or mildly modded motor. Well the offroad pipe would help hp at higher revs, but the loss of backpressure would hurt you more in downlow tq, which is more important. Hell most catbacks are more for sound then power on stock or mild engines. Okay you might gain a couple ponies and that combined with the aggressive sound might make it worth while(not to me). But the better catbacks are usually 300-650 bucks. It's up to the cars owner what they want to do, not me, not you. I'm just saying I get tired of magazine, bench racers telling how they got super duper mega hp from a little mod that have naturally aspirated cars. Sermons over.

DH

surfbeast · 09-10-2002, 09:46 AM

Who was starting SH*T with you?? My remark was to the original post not YOUR post reply. I think I know sarcasim, You obviously think your reply was more important than the original post issue. Typical from someone from Illinois! Now that is starting SH**!

Titan · 09-10-2002, 10:06 AM

Easy boys...we all get the point. Opinions are opinions, and if I like something I'm gonna back it. Maybe I over-exaggerate on some things, but it's my opinion. If I like it and think it makes a difference, I'm probably going to recommend it...

Illini · 09-10-2002, 10:35 AM

WTF, I never said you started *****, I said don't, meaning in the future or in another post but I see you didn't pick up on that. And what the **** is wrong with Illinois, let me guess you pronounce the s at the end don't you? DON'T YOU???? Actually IL. just got a new zoo, we Fenced in Tenn!!! LOL, fvck take a joke. As far as post importance is concerned, who gives a fvck, I said what I wanted to, then people misunderstood parts of my post and I wanted to C-L-A-R-I-F-Y before I started to get flamed. Ease up off the drugs ***** man. Wheres Maryville at I show steers and show heifers at murpheysboro in March and sometimes at Memphis in sept. Actually I kinda like going down there, because I always smoke every exhibitor down there and they get pissed and start saying I cheat, try to protest, and ban me It's fun.

surfbeast · 09-10-2002, 10:45 AM

Hey, a foul mouthed cow farmer, does it get any better?

91LX2Bfast · 09-10-2002, 12:05 PM

quotes from tireburner163...
"Stock: 260hp
Off-road h-pipe and cat-back: 280-285hp....."

Thats 20-25 PEAK HP you are claiming with an H or X pipe/catback setup.

"Yes a h-pipe and cat-back can add 20hp"

Yes, CAN, but not on a stock 99GT.

"Get the H-pipe dude, it's worth a lot more than 6hp."

Yeah, your right, thats 7 peak HP.
Bullitt Prochamber dyno

Again, I agree that an H or X-pipe is a great mod, but I don't think you will have 285HP with that and a 3-5 peak HP cat-back.

Dark_5.0 · 09-10-2002, 12:16 PM

My buddy picked up 20RWHP with Long tube headers, O/R X-pipe and a K&N on his 01' Cobra.

Dyno Proven.

09-09-2002, 09:12 AM	#1
91LX2Bfast Registered Member Join Date: Dec 1999 Location: Warrington, PA Posts: 694	Lets not get carried away... In several posts I have been reading that H or X-pipes are going to add 20+hp on a stock car, etc. Lets not get too carried away here people. This board prides itself on having members that give info only when they know it's helpful and correct. Passing bad or misleading info doesn't help anyone. Yes, while and aftermarket H- or X-pipe helps release some nice HP for the money, I find it very hard to believe to suddenly everyone is gaining 20+ hp. Its a great mod for sure, but we don't want memebers walking around telling others haw their Mustang suddenly has 280+ hp because they install a H-pipe on their stock 99GT. I am sure 20HP+ can be found on a stock exhuast, superchaged GT, but thats not the cars asking the questions here. From dyno charts I have seen, they release anywhere from 6-12hp on a mostly stock car. And 12Hp is usually on the higher side. I only used this specific application an example, its not meant to make any people feel bad in any way and what not. I just know that a lot of sh1t went down on another board because suddenly people had "300hp" cars with a set of mufflers, a cold air intake, and underdrive pulleys, and alot of great members left the site. __________________ '97 T-bird LX 4.6L 2V, auto SVO heads/intake, Vortech T-trim, front mounted intercooler, blower cams, Cobra crank, Manley H-beam rods, JE pistons, Aeromotive fuel system w/ 42# injectors, and much more No times yet

09-09-2002, 10:49 AM	#2
GodStang College Stanger Join Date: May 1999 Location: Aiken,south carolina, usa Posts: 1,097	I agree. You read the adds about a product that gave as much as 30 rwhp. You read the small print and it is like a 2002 Turbo diesel Truck that got that much. That does nothing for our mustangs that get like 6rwhp for the same product. People buy these products looking for these gains and do not get it and waste $200. I think adds need to be more specific. __________________ 2003 Sonic Blue Cobra

09-09-2002, 12:02 PM	#3
Titan Registered Member Join Date: Jul 2002 Location: Atlanta Posts: 296	I don't think he had adds in mind when he wrote that thread... __________________ Current Sophomore -- Mechanical Engineering Black on Black 98' GT 5-Speed Mods = Stuff

09-09-2002, 01:13 PM	#4
Illini Registered Member Join Date: Mar 2002 Location: Illinois Posts: 44	totally agree Well guys, you wouldn't believe this, but I just put some wd-40 on my acces. belt and it freed up like at least 10 hp. Or so it felt like. I think tonight I'm goin top off the brake light fluid and grease the antenna for better reception and less air resistance. I bet it would pick up .1 in the qtr. Maybe even put in new muffler bearings, the old ones are causing too much backpressure. Like you I'm kinda gettin tired of all this magazine ad. hp sh1t. If I beleived what the ads say I'd have over 300 hp at the crank, riiiight. Hell you can't blame em, some people on here seek professional help to install underdrives pulleys, so how could they comprehend that the pulleys could never give them 15 ponies like the neat little ads says they do. Before the flamethrowers get broke out, usually the people that know very little about vehicle performance are the ones to spout off about how they gained "like" huge amounts of hp from some meager bolt-on. DH __________________ 2002 min gray GT: steeda underdrives, timing adjuster, triax, C&L maf, MM strut tower brace and k-member brace, Steeda subs weld-in, steeda tubular front sway bar, bullitt springs ,struts(tokico's)and shocks, bullitt gas door, alum.pedals, MM panhard Bar, cobra 13" front brake upgrade. ON THE WAY TO BECOMING A TRACK ***** 66' 2 dr malibu; 355 cube 4-bolt main, steel crank, chevy pink rods, KB 10.7 to1 pistons, ported double humps 202&160, torkerII intake, rejetted holley 650 D.P., crane ignition box, comp.cam roller rockers& 280 degree cam, balanced to 8500 rpm, hooker super comps, 3000 rpm stall and built turbo 350 tranny. dynoed at 543hp and 582 tq

09-09-2002, 02:07 PM	#5
GodStang College Stanger Join Date: May 1999 Location: Aiken,south carolina, usa Posts: 1,097	I know he meant people and not ads but I added to his statement. If I went by ads or by what people say I would have about 200hp I bet I have no more than about 155-160hp __________________ 2003 Sonic Blue Cobra

09-09-2002, 02:25 PM	#6
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	Seems like this whole thing came about from an H-pipe hp number. The 96-98 gt's are terribly choked by the exhaust, so maybe we should get some actual dyno numbers to clear this up. My exhaust is stock, and if someone wants to pay for the dyno/h-pipe install I'll post some numbers. There seems to be a deeper problem than this from the tone I'm reading in some of these posts. Maybe its just because its Monday. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

09-09-2002, 02:46 PM	#7
91LX2Bfast Registered Member Join Date: Dec 1999 Location: Warrington, PA Posts: 694	I have long ago given up on manufactures adsand their claimed HP gains. "The 96-98 gt's are terribly choked by the exhaust..." I think you mean terribly choked by small, bad flowing exhaust ports in the head. They are restricted no more then any other Mustang. In fact, since they have the same 2 1/4" setup that the the 99+GT's have, you would assume that the newer GT's have a more restricted setup since they have a higher output engine requiring more breathing. I meant exactly what I said. Don't tell people they will gain 20-30peak HP on a stock GT from H-pipe and catback install. Thats it. __________________ '97 T-bird LX 4.6L 2V, auto SVO heads/intake, Vortech T-trim, front mounted intercooler, blower cams, Cobra crank, Manley H-beam rods, JE pistons, Aeromotive fuel system w/ 42# injectors, and much more No times yet

09-09-2002, 03:18 PM	#8
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	I was under the impression that the cats flowed better on the newer cars. If they are the same then there is a LOT of bad information out there. I know my heads don't flow for crap, and I wouldn't tell anyone that they will pick up 9% more hp (20 on a a 215 motor) by changing one part. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

09-09-2002, 10:43 PM	#9
Illini Registered Member Join Date: Mar 2002 Location: Illinois Posts: 44	I guess you mean me, Duece sorry, didn't know my tone was being monitored by the internet police. I just get phucking tired of people sounding like they are the last word in vehicle performance, when they wouldn't know the difference between a wrist pin and a sparkplug. If someone doesn't, thats fine but when they act like they do it just makes em look like pillow biters. Thats all I meant by my post, oh and the fact that mag ads take hp gains for liberty and always claim the highest gain even if it's from another application. Like Godstang said in the little print it's for another vehicle, but they lead you to think the gains are from a mustang, camaro, VW whatever, you get my point. And to reiterate I am very limited in my experience with mustangs, so don't make it sound like I think I know all. I know that a catback or even an offroad h,x-pipe will not give 20-30hp at the wheels on a naturally aspirated, mildly modded engine. MY .02 CENTS DH P.S. Monday has no effect on me I'm always a bastard. __________________ 2002 min gray GT: steeda underdrives, timing adjuster, triax, C&L maf, MM strut tower brace and k-member brace, Steeda subs weld-in, steeda tubular front sway bar, bullitt springs ,struts(tokico's)and shocks, bullitt gas door, alum.pedals, MM panhard Bar, cobra 13" front brake upgrade. ON THE WAY TO BECOMING A TRACK ***** 66' 2 dr malibu; 355 cube 4-bolt main, steel crank, chevy pink rods, KB 10.7 to1 pistons, ported double humps 202&160, torkerII intake, rejetted holley 650 D.P., crane ignition box, comp.cam roller rockers& 280 degree cam, balanced to 8500 rpm, hooker super comps, 3000 rpm stall and built turbo 350 tranny. dynoed at 543hp and 582 tq

09-09-2002, 11:02 PM	#10
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Yes a h-pipe and cat-back can add 20hp. Considering that you are going from a 2 1/4" pipe with 6 cats, to a 2 1/2" pipe with no cats. __________________ 1987 Buick T-type 1998 HD Electra Elide

09-10-2002, 01:30 AM	#11
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	All I'm saying is that some people got really mad about an honest mistake. Do we actually know what the net RWHP is for each specific mod? It's not like anyone is claiming 20 for a k&n. Well, maybe some Cobra guys. Seems like you will see a big increase in flow from removing all those cats. Call me crazy, but if its not more than 6hp it ain't worth the effort. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

09-10-2002, 07:58 AM	#12
surfbeast Registered Member Join Date: Feb 2002 Location: Maryville,TN Posts: 415	If we were all master mechs and had a dyno then we could settle all the questions on add-on HP gains. Also, every car is different and gets a different amount of gain/loss from each MOD. Of course a new car guy that just spent a bunch of money on a part wishes he got the max hp gain stated in the adds for the part, hell, what else does he have to go on? Should he tell his friends " I just spent $500 buck and got 5 rwhp! " ? Part of owning a performance car is having fun adding to it, that's why even the seasoned veterans that know these parts don't give stated results still use them. Give the average guy that don't know what he is getting a break! We all like to DREAM BIG! And when money is tight ( always ) 20HP sound a whole lot better than 6. If the new guys want to dillude themselves thinking they have 300+ Hp with a few bolt on let them, They will see what they really have when it matters and when they become more knowledgeable. If you don't like them saying that then teach them, don't rag them out! __________________ 98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more!

09-10-2002, 09:24 AM	#14
Illini Registered Member Join Date: Mar 2002 Location: Illinois Posts: 44	yo surfbeast I hope that you don't beleive that I think that I have 300 at the crank reread my first post. Notice the "riiiight" after the 300 hp sentence, that my friend is sarcasm. You know like in Austin Powers, Dr evil always said Riiight. I was kidding so don't go off saying Illini says he's got 300hp and start sh1t, cuase I never said it seriously. Hence the"riiiight" at the end of the sentence. Tireburner reread my post, you got confused. The way it is worded implies that a catback alone would not produce 20-30hp at the wheels, nor would a offroad pipe alone produce that result with a stock or mildly modded motor. Well the offroad pipe would help hp at higher revs, but the loss of backpressure would hurt you more in downlow tq, which is more important. Hell most catbacks are more for sound then power on stock or mild engines. Okay you might gain a couple ponies and that combined with the aggressive sound might make it worth while(not to me). But the better catbacks are usually 300-650 bucks. It's up to the cars owner what they want to do, not me, not you. I'm just saying I get tired of magazine, bench racers telling how they got super duper mega hp from a little mod that have naturally aspirated cars. Sermons over. DH __________________ 2002 min gray GT: steeda underdrives, timing adjuster, triax, C&L maf, MM strut tower brace and k-member brace, Steeda subs weld-in, steeda tubular front sway bar, bullitt springs ,struts(tokico's)and shocks, bullitt gas door, alum.pedals, MM panhard Bar, cobra 13" front brake upgrade. ON THE WAY TO BECOMING A TRACK ***** 66' 2 dr malibu; 355 cube 4-bolt main, steel crank, chevy pink rods, KB 10.7 to1 pistons, ported double humps 202&160, torkerII intake, rejetted holley 650 D.P., crane ignition box, comp.cam roller rockers& 280 degree cam, balanced to 8500 rpm, hooker super comps, 3000 rpm stall and built turbo 350 tranny. dynoed at 543hp and 582 tq

09-10-2002, 09:46 AM	#15
surfbeast Registered Member Join Date: Feb 2002 Location: Maryville,TN Posts: 415	HEY ILLINI! Who was starting SHT with you?? My remark was to the original post not YOUR post reply. I think I know sarcasim, You obviously think your reply was more important than the original post issue. Typical from someone from Illinois! Now that is starting SH*! __________________ 98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more!

09-10-2002, 10:06 AM	#16
Titan Registered Member Join Date: Jul 2002 Location: Atlanta Posts: 296	Easy boys...we all get the point. Opinions are opinions, and if I like something I'm gonna back it. Maybe I over-exaggerate on some things, but it's my opinion. If I like it and think it makes a difference, I'm probably going to recommend it... __________________ Current Sophomore -- Mechanical Engineering Black on Black 98' GT 5-Speed Mods = Stuff

09-10-2002, 10:35 AM	#17
Illini Registered Member Join Date: Mar 2002 Location: Illinois Posts: 44	Phuck, MY BAD!!!!!!! WTF, I never said you started ***, I said don't, meaning in the future or in another post but I see you didn't pick up on that. And what the is wrong with Illinois, let me guess you pronounce the s at the end don't you? DON'T YOU???? Actually IL. just got a new zoo, we Fenced in Tenn!!! LOL, fvck take a joke. As far as post importance is concerned, who gives a fvck, I said what I wanted to, then people misunderstood parts of my post and I wanted to C-L-A-R-I-F-Y before I started to get flamed. Ease up off the drugs * man. Wheres Maryville at I show steers and show heifers at murpheysboro in March and sometimes at Memphis in sept. Actually I kinda like going down there, because I always smoke every exhibitor down there and they get pissed and start saying I cheat, try to protest, and ban me It's fun. __________________ 2002 min gray GT: steeda underdrives, timing adjuster, triax, C&L maf, MM strut tower brace and k-member brace, Steeda subs weld-in, steeda tubular front sway bar, bullitt springs ,struts(tokico's)and shocks, bullitt gas door, alum.pedals, MM panhard Bar, cobra 13" front brake upgrade. ON THE WAY TO BECOMING A TRACK *** 66' 2 dr malibu; 355 cube 4-bolt main, steel crank, chevy pink rods, KB 10.7 to1 pistons, ported double humps 202&160, torkerII intake, rejetted holley 650 D.P., crane ignition box, comp.cam roller rockers& 280 degree cam, balanced to 8500 rpm, hooker super comps, 3000 rpm stall and built turbo 350 tranny. dynoed at 543hp and 582 tq

09-10-2002, 10:45 AM	#18
surfbeast Registered Member Join Date: Feb 2002 Location: Maryville,TN Posts: 415	Hey, a foul mouthed cow farmer, does it get any better? __________________ 98 GT / convertable -98 Saleen engine, Saleen appearance pkg. SHM cams,P&P NPI heads, and so much more!

09-10-2002, 12:05 PM	#19
91LX2Bfast Registered Member Join Date: Dec 1999 Location: Warrington, PA Posts: 694	quotes from tireburner163... "Stock: 260hp Off-road h-pipe and cat-back: 280-285hp....." Thats 20-25 PEAK HP you are claiming with an H or X pipe/catback setup. "Yes a h-pipe and cat-back can add 20hp" Yes, CAN, but not on a stock 99GT. "Get the H-pipe dude, it's worth a lot more than 6hp." Yeah, your right, thats 7 peak HP. Bullitt Prochamber dyno Again, I agree that an H or X-pipe is a great mod, but I don't think you will have 285HP with that and a 3-5 peak HP cat-back. __________________ '97 T-bird LX 4.6L 2V, auto SVO heads/intake, Vortech T-trim, front mounted intercooler, blower cams, Cobra crank, Manley H-beam rods, JE pistons, Aeromotive fuel system w/ 42# injectors, and much more No times yet

09-10-2002, 12:16 PM	#20
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	My buddy picked up 20RWHP with Long tube headers, O/R X-pipe and a K&N on his 01' Cobra. Dyno Proven. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer