Exhaust questions on '95 GT

RodsByRad · 12-10-2001, 05:40 PM

I have a stock '95 GT. I want to get the exhaust in order. Keep in mind, I'm used to driving a '90 Chevy 454SS with a 534ci big block with Hooker Headers, 3" exhaust and 2 chamber flow's. I want my mustang to sound like that (minus the .660 lift cam).

Here are my plans, let me know if I'm smokin' crack or not.

I want to get a set of BBK or Bassini 1 5/8" equal length shorties, get rid of all 4 cats and have my local muffler shop build a new dual exhaust with H pipe and 2 chamber flowmasters. The flowmasters will be 3" straight through (no inlet/outlet offset). I'm pulling them from the truck.

Will this work? The guy at the muffler shop was afraid removing the cats would hose up the computer.

Suggestions?

TJR · 12-10-2001, 07:53 PM

Well, I doubt your going to get the Mustang to sound like the big block. In my opinion though, nothing sounds better than a 5.0 Mustang with 2 chamber flowmasters (keep in mind that I've been around a lot of purpose built race cars and street cars).

I would get a set of 1 5/8" unequal shorties, 2 1/2" off road H-pipe, and a set of (2 1/2") two chamber flowmasters. From what I've heard, this setup sounds the best. Also, I would not waste the money on the equal length shorties. They're more of pain to work with (especially when changing the plugs), and the gains with them over the unequal length are minimal.

As far as the computer and no catatlytic converters goes, it's different for every car. On some cars, the O2 sensors have trouble sampling the air since the restriction that was once there is now gone. Also, It might cause the check engine light to come on periodically, and you may experience some lean poping every now and again. To avoid this, you could weld some metal tabs behind the 02 sensors (inside of the h-pipe to slow the exhaust stream) or you could get an H-pipe with high flow cats, which will quiet down the exhaust a little bit. That's my $.02 on the subject.

andy669 · 12-11-2001, 08:22 PM

Yeah, what TJR said! I dont think removing the cats will set off your light though on your 95. As for your other question, yeah I think youre smoking crack!.....j/k
andy

93CobraR · 12-11-2001, 08:53 PM

Get the BBK long tube headers, they sound alot better IMO, and they are louder at full throttle. I would then just order an off road h-pipe for it. I have never seen a 5.0 have computer problems with no cats.

blueneonman1 · 12-11-2001, 10:59 PM

Im set on my next mods being BBK longtubes w/ a BBK shorty H like 93CobraR said. It's only $420 shipped from Summit!!

TJR · 12-12-2001, 12:25 AM

I don't know if the longtubes would be worth it at this point in time. For the sake of argument, I'll throw in another $.02 (which is about all it's worth

).

1. It's a stock mustang, which in my opinion, isn't worth the hassle of the install (especially since it's a sn95 = less room under the hood). Also, we don't know what mods (if any) are planned for the future.

2. We don't know what transmission is in the car. Do they make longtubes that fit around the AOD? Also, If it has a manual tranny, there's the possibility of melting clutch cables.

3. Longtubes may throw off the readings from the o2 sensors since they are located farther downstream than stock (ie exhaust gases being too cool). Even though they work well on your car, does not necessarily mean that they will work on someone elses. My check engine light used to come on all the time due to the absence of catalytic converters. But for some reason, it hasn't came on at all since my head/cam swap. Go figure!

If it were my decision, I would go with the unequal shorties, off-road h, and flowmasters.

CausingHavok · 12-12-2001, 06:30 AM

i went with the bbk 2 1/2" off-road h-pipe and threw a borla catback on it and no joke it makes flows sound almost like a stock mustang its much cleaner, deeper, and much more of a rumble than flows. Borla is very much worth the extra money.

RodsByRad · 12-12-2001, 10:35 AM

Sorry, here's some more info. It is a stock '95 GT with a 5 speed. Major mods are planned, however I will build another motor and drive this one while it's being built. But the exhaust will transfer. I am planning a 331 stroker for a ProCharger.

I think I've almost decided to go with MAC or BBK longtubes, custom built off-road h-pipe and my old 3" 2-chamber flowmasters.

Rad...

fasteddie · 12-13-2001, 01:23 PM

i have a 95 gt aod.bbk unequal shorties flowtech h pipe and flowmaster catback american thunder.it sounds great and cut .5 off my 1/4 time.

12-10-2001, 05:40 PM	#1
RodsByRad Registered Member Join Date: Dec 2001 Location: Oklahoma Posts: 11	Exhaust questions on '95 GT I have a stock '95 GT. I want to get the exhaust in order. Keep in mind, I'm used to driving a '90 Chevy 454SS with a 534ci big block with Hooker Headers, 3" exhaust and 2 chamber flow's. I want my mustang to sound like that (minus the .660 lift cam). Here are my plans, let me know if I'm smokin' crack or not. I want to get a set of BBK or Bassini 1 5/8" equal length shorties, get rid of all 4 cats and have my local muffler shop build a new dual exhaust with H pipe and 2 chamber flowmasters. The flowmasters will be 3" straight through (no inlet/outlet offset). I'm pulling them from the truck. Will this work? The guy at the muffler shop was afraid removing the cats would hose up the computer. Suggestions?

12-10-2001, 07:53 PM	#2
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	Well, I doubt your going to get the Mustang to sound like the big block. In my opinion though, nothing sounds better than a 5.0 Mustang with 2 chamber flowmasters (keep in mind that I've been around a lot of purpose built race cars and street cars). I would get a set of 1 5/8" unequal shorties, 2 1/2" off road H-pipe, and a set of (2 1/2") two chamber flowmasters. From what I've heard, this setup sounds the best. Also, I would not waste the money on the equal length shorties. They're more of pain to work with (especially when changing the plugs), and the gains with them over the unequal length are minimal. As far as the computer and no catatlytic converters goes, it's different for every car. On some cars, the O2 sensors have trouble sampling the air since the restriction that was once there is now gone. Also, It might cause the check engine light to come on periodically, and you may experience some lean poping every now and again. To avoid this, you could weld some metal tabs behind the 02 sensors (inside of the h-pipe to slow the exhaust stream) or you could get an H-pipe with high flow cats, which will quiet down the exhaust a little bit. That's my $.02 on the subject. __________________ 1989 lx notch 89,000 miles 5-speed, bolt-ons, 3.73, TFS TWs, TFS Track Heat, TFS Stage 1 cam

12-11-2001, 08:22 PM	#3
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Yeah, what TJR said! I dont think removing the cats will set off your light though on your 95. As for your other question, yeah I think youre smoking crack!.....j/k andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

12-11-2001, 08:53 PM	#4
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,575	Get the BBK long tube headers, they sound alot better IMO, and they are louder at full throttle. I would then just order an off road h-pipe for it. I have never seen a 5.0 have computer problems with no cats. __________________ 87 GT, Cobra R's,GT-40 heads,Crane 2031,1.7's, Edelbrock intake, long tubes,BBK cold air, Mass air,pulleys,Pro 5.0, King Cobra,Lakewood Lift Bars,50/50's,subframes, 4.10's. Best time 12.759 Best MPH 106.79 Best 60' 1.695 71 Nova SS 350, 4 spd. 4.11s, ect..... Visit my site at: http://www.geocities.com/cobrar93_2000/MyPage.html

12-11-2001, 10:59 PM	#5
blueneonman1 Registered Member Join Date: Mar 2001 Location: Palm Harbor, FL Posts: 208	Im set on my next mods being BBK longtubes w/ a BBK shorty H like 93CobraR said. It's only $420 shipped from Summit!! __________________ Blue Streak - '95 5.0L Mustang GT convertible \| Saleen heat extractor fiberglass hood \| K&N custom CAI \| Taylor Spiro Pros \| Walbro 255lph pump \| Kirban AFPR \| MSD Cap/Rotor/Blaster TFI \| 2 chamber flows w/ dumps \| BBK LTs \| BBK short h-pipe \| No smog or EGR \| NOS 75hp dry kit w/ heater & purge \| Battery in trunk\| Chassis Eng. subframes \| Custom 6-pt rollbar \| King Cobra clutch \| Steeda adj. clutch cable w/ double hook quad. & firewall adj. \| B&M Ripper shifter \| FMS C springs \| Pro3i C/C plates \| Lakewood 70/30 struts \| Comp. Eng. 3-way shocks \| Chassis Eng. LCAs \| Fan switch \| 180* thermo FMS\| Kumho Ecsta 255/40's all around \| Coolest neon lighting on a Mustang EVER! Don't find yourself in front of me...my brakes SUCK! saving up for a complete Cobra package Homepage: http://www16.brinkster.com/blueneonman/ Best 1/4 time: 13.5 @ 101 Best 1/8 time: 8.6 @ 84

12-12-2001, 12:25 AM	#6
TJR Registered Member Join Date: Apr 2001 Location: Bowling Green, OH Posts: 270	I don't know if the longtubes would be worth it at this point in time. For the sake of argument, I'll throw in another $.02 (which is about all it's worth). 1. It's a stock mustang, which in my opinion, isn't worth the hassle of the install (especially since it's a sn95 = less room under the hood). Also, we don't know what mods (if any) are planned for the future. 2. We don't know what transmission is in the car. Do they make longtubes that fit around the AOD? Also, If it has a manual tranny, there's the possibility of melting clutch cables. 3. Longtubes may throw off the readings from the o2 sensors since they are located farther downstream than stock (ie exhaust gases being too cool). Even though they work well on your car, does not necessarily mean that they will work on someone elses. My check engine light used to come on all the time due to the absence of catalytic converters. But for some reason, it hasn't came on at all since my head/cam swap. Go figure! If it were my decision, I would go with the unequal shorties, off-road h, and flowmasters. __________________ 1989 lx notch 89,000 miles 5-speed, bolt-ons, 3.73, TFS TWs, TFS Track Heat, TFS Stage 1 cam

12-12-2001, 06:30 AM	#7
CausingHavok Registered Member Join Date: Dec 2001 Location: Houston TX Posts: 11	i went with the bbk 2 1/2" off-road h-pipe and threw a borla catback on it and no joke it makes flows sound almost like a stock mustang its much cleaner, deeper, and much more of a rumble than flows. Borla is very much worth the extra money. __________________ Black 1995 mustang 5.0 convertible: Black leather interior, mach 460 sound system, tremic 5 speed, ram clutch, cobra intake, 65mm throttle body, fenderwell cold air induction, 77mm mass air, underdrive pullies, 3..55/1 gear ratio, dino tuned diablosport chip, 24 lb fuel injecters, 190 lph fuel pump. off road h pipe, borla catback, subframe connecters yokohama a520 275/40/17zr (back) a520 255/45/17zzr (front)

12-12-2001, 10:35 AM	#8
RodsByRad Registered Member Join Date: Dec 2001 Location: Oklahoma Posts: 11	More info Sorry, here's some more info. It is a stock '95 GT with a 5 speed. Major mods are planned, however I will build another motor and drive this one while it's being built. But the exhaust will transfer. I am planning a 331 stroker for a ProCharger. I think I've almost decided to go with MAC or BBK longtubes, custom built off-road h-pipe and my old 3" 2-chamber flowmasters. Rad...

12-13-2001, 01:23 PM	#9
fasteddie Registered Member Join Date: Aug 2001 Location: joplin mo usa Posts: 10	exhaust i have a 95 gt aod.bbk unequal shorties flowtech h pipe and flowmaster catback american thunder.it sounds great and cut .5 off my 1/4 time.

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