Exhaust for 2000 GT, SLP or Flows

blownbyyou · 04-05-2004, 12:06 PM

Hello,
This friday I added another car to my collections of mustangs. This one is a Triple Black GT convertible mustang, 2000 with 2003 hood. To get to the point, The exhaust is to quiet. I have been reading about The SLP exhaust system, with the 3 inch tips. Is it good? or should i go with Flows? Also is it a good idea to go with an offroad X pipe?

bigred90gt · 04-05-2004, 06:41 PM

I have flows and a prochamber on my 01 gt, and it sounds ok. I didnt like the way it sounded before the prochamber though. I personally prefer the sound of MAC mufflers. You can go to www.mustangexhaust.com and listen to several different combo's.

Here is the slp with stock manifolds and stock h-pipe on a 2003 gt, launching.

Here is another clip of slp on an 03 with the same setup, I guess the difference is one is launching the other isnt.

Here is a clip from a from a 00 gt with 2 chamber flows, stock h-pipe, and stock manifolds.

Just for good measures, here is a clip of a 00 gt, prochamber, stock manifolds, and MAC flowpaths.

Hope this helps.

TARZAN · 04-05-2004, 07:28 PM

FLOWMASTERS!!!!!!!!!!

-Will

Hammer · 04-05-2004, 09:28 PM

While I don't particularly like the sound....

If you are going for raising the exhaust note to some major decibels, Flowmaster is the one.
(Just don't drive by my house past 11 PM...)

xxxBlakexxx · 04-05-2004, 11:23 PM

All I can say is that my SLP Loudmouth has been on order for over three weeks. It is supposed to ship this week, so I will let you know. Why did I choose this one and return my flowmasters?

1 - Loved the sound
2 - HP gains from the SLP that you don't get from the flows
3 - I wanted to be a tad different.

bigred90gt · 04-06-2004, 01:29 AM

Quote:

Originally posted by Hammer
While I don't particularly like the sound....

If you are going for raising the exhaust note to some major decibels, Flowmaster is the one.
(Just don't drive by my house past 11 PM...)

While I can appreciate that, I have had flows with a stock h-pipe and headers., and while it is better than stock sound, it is not that loud and it certainly isnt great. There are many more mufflers that have a much greater performance gain as well as a boost in sound. Anything straight through will not only have a better sound, but it will not be chambered like the flows. If you have ever seen a disected flowmaster, they are very restricted in flow. If you like the sound of flows, go for them. I have 2 chambers on my 90 and my 01 and I am sooooooo ready for a new sound. Every other mustang on the road has flows, except for the smart few.

blownbyyou · 04-06-2004, 09:22 PM

Thanks guys,
Bigred90Gt, thanks for those links. I spent about two hours compairing exhaust and i think it is a toss up between the SLP Bassani , and yes Mac. I never realized how expensive exhaust systems have become. The one that i have on my 66 mustang is pretty cheap, although it is not much, just some 3 in pipe and race mufflers that dump out on the side. I still don't know which one to go with.

Hammer · 04-06-2004, 09:59 PM

Quote:

While I can appreciate that, I have had flows with a stock h-pipe and headers., and while it is better than stock sound, it is not that loud and it certainly isnt great. There are many more mufflers that have a much greater performance gain as well as a boost in sound. Anything straight through will not only have a better sound, but it will not be chambered like the flows. If you have ever seen a disected flowmaster, they are very restricted in flow. If you like the sound of flows, go for them. I have 2 chambers on my 90 and my 01 and I am sooooooo ready for a new sound. Every other mustang on the road has flows, except for the smart few.

I personally have never used flowmaster mufflers, but I know many that have some flow 2 chambers, and they are quite loud.
Some of this can of course be attributed to other after market exhaust pieces (some had high-flow H pipes), but they were certainly much louder than stock.
(I guess it all depends on how you define loud...)

When I had the 98, I actually used a MAC setup.

They sounded quite aggressive without being as annoying as some other setups... much less of a "drone" at cruise speed also.

I also like the sound of a DynoMax setup...

As far as horsepower...
Anyone expecting to see much of a difference (if at all) on a dyno by just replacing mufflers is in for a rude awakening....

explicitone · 04-07-2004, 04:34 PM

I would not go with flowmasters they are old tech. and dont flow that much over stock I would go with magnaflow magnapacks or slp I would stay awy from flows

JBeryleC · 04-07-2004, 08:37 PM

I spent a couple hours comparing all the sounds too! lol

Sounds to me like the MAC setup is the deepest agressive sounding. While the others are high pitched and annoying.

Except for Delta (2 chamber) Flowmasters, they are loud, and deep, yet not annoying. But not as deep and agressive as MAC.

I personally like the sound of MAC the best

Red Mustang Gt 46 · 04-08-2004, 04:59 PM

My setup after 3 systems...Magnaflow stainless pipes with Mac stainless mufflers. I can't get over the sound...low rumble with just the right amount of backpressure.

JBeryleC · 04-08-2004, 05:01 PM

Yes, but you're cammed!! Big sound difference over stock mods.

Got a sound clip? I'd love to hear it

JBeryleC · 04-09-2004, 12:16 AM

Is the MAC Prochamber California smog legal??
And is the regular H pipe California smog legal??

I cant decide between the Delta 40's and the MAC mufflers.. Someone help me?? Do they really sound that much different??

I want wich ever is deeper, more aggressive, and throatier...
HELP!!

Also.. what size is my stock piping and muffler inlets/outlets?

Thanks!

explicitone · 04-09-2004, 01:27 AM

Quote:

Originally posted by JBeryleC
Is the MAC Prochamber California smog legal??
And is the regular H pipe California smog legal??

I cant decide between the Delta 40's and the MAC mufflers.. Someone help me?? Do they really sound that much different??

I want wich ever is deeper, more aggressive, and throatier...
HELP!!

Also.. what size is my stock piping and muffler inlets/outlets?

Thanks!

the mac pro chamber is not cali smog legal

the stock piping is 2-1/4

JBeryleC · 04-09-2004, 01:30 AM

Ok, so is the MAC H-pipe (smog legal) worth the money to replace the stock H?

Or should I just keep the stock piping and just weld in some MAC mufflers?

JBeryleC · 04-09-2004, 01:47 AM

MAC has 3 different muffler sizes... anyone know if the sizes make a difference in the sound?

That sound clip at mustangexhaust.com for the '00 GT sounds real real good!! I wish I knew which exact muffler it is!!

Anyone out there running MAC mufflers on stock H and stock headers?? I would love to hear it.

explicitone · 04-09-2004, 02:12 AM

Quote:

Originally posted by JBeryleC
Ok, so is the MAC H-pipe (smog legal) worth the money to replace the stock H?

Or should I just keep the stock piping and just weld in some MAC mufflers?

no cat is legal to be removed if the car has under 50k and or the cat is working

even the high flow catted mid pipes are not legal in cali due to the fact they only have 2 cats not 4 what most people do is buy a mid pipe that they like and when it comes time for the smog test they just swap them back to stock

and yes it will free up some power replacing the mid pipe but that cat back is done just for sound the most a bolt on 99+ Gt will pick up is maybe 2-5 if your lucky

JBeryleC · 04-09-2004, 01:00 PM

Yeah I figured it wasnt much of a power adder... 300-400 bucks for an H or X and only for 2-5 hp gain... maybe someday when I'm rich.. LOL

I think I'm just gonna stick the MAC's on there keeping all stock piping. We'll see how it goes

I'm just after the sound anyhow!

Thanks!

explicitone · 04-09-2004, 01:24 PM

Quote:

Originally posted by JBeryleC
Yeah I figured it wasnt much of a power adder... 300-400 bucks for an H or X and only for 2-5 hp gain... maybe someday when I'm rich.. LOL

I think I'm just gonna stick the MAC's on there keeping all stock piping. We'll see how it goes
I'm just after the sound anyhow!

Thanks!

no the mid pipe (h-pipe,x-pipe ) is worth the money but the cat back is not

Red Mustang Gt 46 · 04-09-2004, 03:58 PM

Quote:

Originally posted by JBeryleC
Yeah I figured it wasnt much of a power adder... 300-400 bucks for an H or X and only for 2-5 hp gain... maybe someday when I'm rich.. LOL

I think I'm just gonna stick the MAC's on there keeping all stock piping. We'll see how it goes
I'm just after the sound anyhow!

Thanks!

Nothing wrong with adding a whole cat back but if money is a concern...having your stock muffs cut out and replacing them with aftermarkets ain't a bad move either...MORE AIR MORE POWER.

I'll try to get a sound clip soon...I'm busy modding my whole suspension this week...

04-05-2004, 12:06 PM	#1
blownbyyou Registered Member Join Date: Dec 2002 Location: maryland Posts: 27	Exhaust for 2000 GT, SLP or Flows Hello, This friday I added another car to my collections of mustangs. This one is a Triple Black GT convertible mustang, 2000 with 2003 hood. To get to the point, The exhaust is to quiet. I have been reading about The SLP exhaust system, with the 3 inch tips. Is it good? or should i go with Flows? Also is it a good idea to go with an offroad X pipe? __________________ 1966 ford mustang coupe. 302H.O.+H.O 450hp 350 hp dual stage NOS 4:11 8" aburn Prorearend ATI c4 reverse manual valve body. no e.t. yet before rear swap and NOS addition ran 15.1 with the 2.78 rear gears

04-05-2004, 06:41 PM	#2
bigred90gt 2 Stangs in the Stable Join Date: Apr 2002 Location: Baytown, TX Posts: 1,209	I have flows and a prochamber on my 01 gt, and it sounds ok. I didnt like the way it sounded before the prochamber though. I personally prefer the sound of MAC mufflers. You can go to www.mustangexhaust.com and listen to several different combo's. Here is the slp with stock manifolds and stock h-pipe on a 2003 gt, launching. Here is another clip of slp on an 03 with the same setup, I guess the difference is one is launching the other isnt. Here is a clip from a from a 00 gt with 2 chamber flows, stock h-pipe, and stock manifolds. Just for good measures, here is a clip of a 00 gt, prochamber, stock manifolds, and MAC flowpaths. Hope this helps. __________________ '90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128

04-05-2004, 07:28 PM	#3
TARZAN Registered Member Join Date: Nov 2003 Location: Philadelphia, MS Posts: 191	FLOWMASTERS!!!!!!!!!! -Will __________________ I'm just a guy who has nothing better to do, and loves his stangs. -Will

04-05-2004, 09:28 PM	#4
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	While I don't particularly like the sound.... If you are going for raising the exhaust note to some major decibels, Flowmaster is the one. (Just don't drive by my house past 11 PM...) __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

04-05-2004, 11:23 PM	#5
xxxBlakexxx Registered Member Join Date: Sep 2003 Location: Mountaintop, PA Posts: 634	All I can say is that my SLP Loudmouth has been on order for over three weeks. It is supposed to ship this week, so I will let you know. Why did I choose this one and return my flowmasters? 1 - Loved the sound 2 - HP gains from the SLP that you don't get from the flows 3 - I wanted to be a tad different. __________________ "Children should not get cancer, but they do!" Help a child with cancer at www.homeoftheirown.org My Stang: 2000 Mustang GT Vert - Steeda Tri-Ax Shifter; C&L Plenum; BBK 75 mm TB; Steeda Strut Tower Supports; Black "Deep Dish" Bullet Wheels; FRPP 4.10's; Steeda Subframes; SLP Catback & SLP Catted X-Pipe; SCT 4 Position Chip with 3 custom tunes; Steeda CAI; Venom-1000 Nitrous; Roush Stage 3 Body Kit; Bullet Suspension Package (on the way)

04-06-2004, 09:22 PM	#7
blownbyyou Registered Member Join Date: Dec 2002 Location: maryland Posts: 27	Thanks guys, Bigred90Gt, thanks for those links. I spent about two hours compairing exhaust and i think it is a toss up between the SLP Bassani , and yes Mac. I never realized how expensive exhaust systems have become. The one that i have on my 66 mustang is pretty cheap, although it is not much, just some 3 in pipe and race mufflers that dump out on the side. I still don't know which one to go with. __________________ 1966 ford mustang coupe. 302H.O.+H.O 450hp 350 hp dual stage NOS 4:11 8" aburn Prorearend ATI c4 reverse manual valve body. no e.t. yet before rear swap and NOS addition ran 15.1 with the 2.78 rear gears

04-07-2004, 04:34 PM	#9
explicitone Registered Member Join Date: Apr 2002 Location: racine ,wi Posts: 691	I would not go with flowmasters they are old tech. and dont flow that much over stock I would go with magnaflow magnapacks or slp I would stay awy from flows __________________ RUN IT STAIGHT AND RUN IT HARD ________ Novi 2000 60' 1.46 1/4 10.67 mph 126.5 _________

04-07-2004, 08:37 PM	#10
JBeryleC Registered Member Join Date: Jul 2003 Location: Sebastopol CA Posts: 169	I spent a couple hours comparing all the sounds too! lol Sounds to me like the MAC setup is the deepest agressive sounding. While the others are high pitched and annoying. Except for Delta (2 chamber) Flowmasters, they are loud, and deep, yet not annoying. But not as deep and agressive as MAC. I personally like the sound of MAC the best __________________ Torch Red '02 GT Convertible 5 spd BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin! Click here for pictures & more info! If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!

04-08-2004, 04:59 PM	#11
Red Mustang Gt 46 13.3 @ 103 Join Date: May 2001 Location: Maryland Posts: 253	My setup after 3 systems...Magnaflow stainless pipes with Mac stainless mufflers. I can't get over the sound...low rumble with just the right amount of backpressure. __________________ Equipment by: Steeda C&L COMP CAMS FRPP MSD Bassani Magnaflow MAC

04-08-2004, 05:01 PM	#12
JBeryleC Registered Member Join Date: Jul 2003 Location: Sebastopol CA Posts: 169	Yes, but you're cammed!! Big sound difference over stock mods. Got a sound clip? I'd love to hear it __________________ Torch Red '02 GT Convertible 5 spd BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin! Click here for pictures & more info! If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!

04-09-2004, 12:16 AM	#13
JBeryleC Registered Member Join Date: Jul 2003 Location: Sebastopol CA Posts: 169	Is the MAC Prochamber California smog legal?? And is the regular H pipe California smog legal?? I cant decide between the Delta 40's and the MAC mufflers.. Someone help me?? Do they really sound that much different?? I want wich ever is deeper, more aggressive, and throatier... HELP!! Also.. what size is my stock piping and muffler inlets/outlets? Thanks! __________________ Torch Red '02 GT Convertible 5 spd BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin! Click here for pictures & more info! If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!

04-09-2004, 01:30 AM	#15
JBeryleC Registered Member Join Date: Jul 2003 Location: Sebastopol CA Posts: 169	Ok, so is the MAC H-pipe (smog legal) worth the money to replace the stock H? Or should I just keep the stock piping and just weld in some MAC mufflers? __________________ Torch Red '02 GT Convertible 5 spd BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin! Click here for pictures & more info! If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!

04-09-2004, 01:47 AM	#16
JBeryleC Registered Member Join Date: Jul 2003 Location: Sebastopol CA Posts: 169	MAC has 3 different muffler sizes... anyone know if the sizes make a difference in the sound? That sound clip at mustangexhaust.com for the '00 GT sounds real real good!! I wish I knew which exact muffler it is!! Anyone out there running MAC mufflers on stock H and stock headers?? I would love to hear it. __________________ Torch Red '02 GT Convertible 5 spd BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin! Click here for pictures & more info! If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!

04-09-2004, 01:00 PM	#18
JBeryleC Registered Member Join Date: Jul 2003 Location: Sebastopol CA Posts: 169	Yeah I figured it wasnt much of a power adder... 300-400 bucks for an H or X and only for 2-5 hp gain... maybe someday when I'm rich.. LOL I think I'm just gonna stick the MAC's on there keeping all stock piping. We'll see how it goes I'm just after the sound anyhow! Thanks! __________________ Torch Red '02 GT Convertible 5 spd BBK long tubes, BBK h-pipe, MAC mufflers, K&N w/ silencer trimmed, FRPP 70mm throttle body, C&L plenum, Mobil1 synthetic fluids, FRPP aluminum drive shaft, Steeda Tri-Ax shifter, FRPP 4.10's, 18x9 & 18x10 Saleens with Dunlop SP Super Sport Race rubber, Mach1 grill (GT delete), & Mach1 bumper chin! Click here for pictures & more info! If you are in Northern California, check out North Bay Mustang Club for local meets and cruises!

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