Exhaust

ebo 4356 · June 9th, 2008, 12:22 PM

I have a off-road h pipe right now but i need to pass inspection so i was looking at catted x pipes. If i get a catted x with only two cats on it, it will pass inspection right, and how much will it change the sound(quieter, louder, raspier, etc).

Lefty · June 9th, 2008, 05:07 PM

it will pass with only 2 cats....and it all depends on the type of cat it is whether or not the sound will be dampened. but you WILL hear a decrease in volume in general with any type of cats on.

WildWill · June 9th, 2008, 10:55 PM

+1... what he said

CobraVert97 · June 21st, 2008, 02:26 PM

On my 97 Cobra I put on a Bassani Catted X pipe (2 less cats then stock) and it gives the stock cat-back a little more growl but not really much louder. And it was no problem at inspection. Just recently I put on a Magnaflow Cat back, awesome combo with the Bassani fyi, BIG difference in sound.

vortech4.6l · June 21st, 2008, 11:35 PM

yeah secound that i have a bbk cats and off road h pipe, with magnaflows.. it growls then screams at high rpms.. good combo. never had a problem with inspections

ebo 4356 · June 24th, 2008, 11:21 PM

I was goin to put a upr catted x and weld in slp lm1, does any body have a sound clip of that combo, or have heard it before.

Damaso · June 24th, 2008, 11:43 PM

I wouldn't recommend lm1's with any x-pipe. It will sound ricey as hell. I recommend mac flow path, or possibly borla stingers

ebo 4356 · June 24th, 2008, 11:52 PM

i just want something loud and sounds awesome.

ebo 4356 · June 25th, 2008, 05:32 PM

I think it sounds awesome with the slp x and lm1 and the upr x is pretty much the same, and what do u mean it sounds ricey i think any exhaust on our car is far from ricey.

97S281 · June 28th, 2008, 03:46 PM

x pipe's have more of a pitchy import sound. H pipes have more of a throaty growl. both perform excellent. most of your sound is gonna come from your cat back anyway.

ModMustang97GT · June 30th, 2008, 05:26 PM

All parts of your exaust make a difference to your sound. The Catback makes the biggest difference since it has the mufflers in it. X pipes make better hp, less torque, higher pitched sound than the H. Catted Vs. Non-Catted won't affect power untill you are pushing about 400HP. A mid pipe will amplify your sound a noticeable amount, but your stock mufflers will still keep it fairly quiet. I used to have LT headers, Catted H and a stock catback. It sounded good, but still fairly quiet. I put on a Mac 2.5" chambered Cat and it sounded awesome. But I had to swap the Catback for a Dump due to a panhard bar. The Dumps are really loud. I don't like them for daily driving due to the noise, but I unfortunately don't have a choice.

spetz · July 3rd, 2008, 12:03 AM

I figured this would be easier and more "efficient" than creating a new thread on exhausts, so here's my question about my exhaust system.

I currently have a completely stock exhaust system except for the mufflers which are both Flowmasters. (guy before put em on) My GT sounds okay, it's definitely louder than a stck GT but not by alot. And I definitely want the sound to be louder and I want better airflow. So I have been looking at getting SLP X-Pipes but I don't know if I should get shorty pipes or not? I don't plan on changing the headers for awhile but I do want to put a new Catback system on it, like the LM I's.

Is it a good idea to put the SLP Midpipe and Catbacks with stock headers? Please let me know, I basically just want better airflow and a louder/deeper sound from my exhaust. (Meaning I don't want the V6 Camaro next door to my apartment to be louder than my V8 GT) Thanks for the help.

97GT4.6 · July 3rd, 2008, 02:07 AM

SLP Midpipe and a catback will be plenty loud. I'm not sure if your are specifiying a SLP catback, but if you choose that route, it will be damn loud, and you'll love it. Even with stock headers, it will be plenty loud.

spetz · July 3rd, 2008, 12:42 PM

Do I need the SLP shorty pipe or the longer one? Also should I go Hpipe or X?

spetz · July 5th, 2008, 07:05 PM

Advice would be great! Someone with better knowledge or experience help me out here.

97GT4.6 · July 5th, 2008, 08:10 PM

Go H pipe, thats what i have and it sounds great...

YouTube - 97 Mustang GT SLP Loudmouth Comparison...

Lefty · July 6th, 2008, 12:16 AM

ebo...youre in PA right? well i am too. they don't do visual inspection on cats. people think they do, but they don't. you just need to PASS emissions. MIL eliminators on an o/r mid pipe and you're good to go. the only thing is though that MIL eliminators are nearly friggin' impossible to find. you're best bet is ebay.

spetz · July 6th, 2008, 07:09 PM

Is the only reason a shorty is cheaper because it can't fit the SLP headers without being replaced?

ebo 4356 · July 6th, 2008, 11:29 PM

yea I have mil elims. So they dont do a visual inspection, and and how far are you from Belle Vernon Pa.

97S281 · July 11th, 2008, 10:49 PM

SPETZ, your stock exhaust does not have headers. It has an exhaust manifold. If you are going to keep the stock manifold you would need a midpipe that would bolt to shorty headers. If you are going to replace your stock exhaust manifold with headers I would recomend going with long tubes and a short x pipe.

P.S. It's always better to start your own thread, it's easier to determin who's question is being answered.

June 9th, 2008, 12:22 PM	#1
ebo 4356 Regular 1997 Mustang GT 15.2@92.52 (With bad launch) Join Date: Jul 2007 Location: Western Pennsylvania Posts: 154	Exhaust I have a off-road h pipe right now but i need to pass inspection so i was looking at catted x pipes. If i get a catted x with only two cats on it, it will pass inspection right, and how much will it change the sound(quieter, louder, raspier, etc). __________________ 1997 Mustang GT Mac offroad H pipe, Loudmouth 1s weld ins, MGW short shifter, ford racing 3.73 gears, JLT ram air intake, Mach 1 chin spoiler. (Slowly getting parts for PI Swap!)

June 9th, 2008, 10:55 PM	#3
WildWill Enthusiast 1995 Mustang GT Join Date: Oct 2007 Location: Solomons, MD Posts: 587	+1... what he said __________________ GT40 "P" heads, 1.7 Roller Rockers, GT40 upper/lower, MAC long tubes, MAC o/r h-pipe, Flowmaster 40-series, 65mm t/b, 'C' Springs, '03 Cobra Bilstein Struts, Tokico Bullitt Shocks, MM Caster/Camber Plates

June 24th, 2008, 11:21 PM	#6
ebo 4356 Regular 1997 Mustang GT 15.2@92.52 (With bad launch) Join Date: Jul 2007 Location: Western Pennsylvania Posts: 154	I was goin to put a upr catted x and weld in slp lm1, does any body have a sound clip of that combo, or have heard it before. __________________ 1997 Mustang GT Mac offroad H pipe, Loudmouth 1s weld ins, MGW short shifter, ford racing 3.73 gears, JLT ram air intake, Mach 1 chin spoiler. (Slowly getting parts for PI Swap!)

June 24th, 2008, 11:43 PM	#7
Damaso Regular Join Date: Apr 2007 Posts: 159	I wouldn't recommend lm1's with any x-pipe. It will sound ricey as hell. I recommend mac flow path, or possibly borla stingers __________________ 1998 GT 5spd- Full pi swap, Fenderwell CAI,UPR Catted X-Pipe, Mac FlowPath Cat-Back 1988 LX auto- Pypes violator cat-back, UPR X-Pipe, Shift Kit, 4.10 Gears, Pulleys, Suspension upgraded, CAI 1999 GT 5spd- CAI, Pypes violator cat-back

June 24th, 2008, 11:52 PM	#8
ebo 4356 Regular 1997 Mustang GT 15.2@92.52 (With bad launch) Join Date: Jul 2007 Location: Western Pennsylvania Posts: 154	i just want something loud and sounds awesome. __________________ 1997 Mustang GT Mac offroad H pipe, Loudmouth 1s weld ins, MGW short shifter, ford racing 3.73 gears, JLT ram air intake, Mach 1 chin spoiler. (Slowly getting parts for PI Swap!)

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June 9th, 2008, 05:07 PM	#2
Lefty MM's Most Laid Back 01' Cobra Vert. & 96' GT Join Date: Jun 2007 Location: Mechanicsburg, PA Posts: 1,969	it will pass with only 2 cats....and it all depends on the type of cat it is whether or not the sound will be dampened. but you WILL hear a decrease in volume in general with any type of cats on.

June 21st, 2008, 02:26 PM	#4
CobraVert97 Newbie 1997 Mustang Cobra Conv Join Date: Sep 2007 Location: S. New Jersey Posts: 20	On my 97 Cobra I put on a Bassani Catted X pipe (2 less cats then stock) and it gives the stock cat-back a little more growl but not really much louder. And it was no problem at inspection. Just recently I put on a Magnaflow Cat back, awesome combo with the Bassani fyi, BIG difference in sound.

June 21st, 2008, 11:35 PM	#5
vortech4.6l Regular 1998 GT Join Date: Apr 2008 Location: Ft. BraGG Posts: 109	yeah secound that i have a bbk cats and off road h pipe, with magnaflows.. it growls then screams at high rpms.. good combo. never had a problem with inspections

June 25th, 2008, 05:32 PM	#9
ebo 4356 Regular 1997 Mustang GT 15.2@92.52 (With bad launch) Join Date: Jul 2007 Location: Western Pennsylvania Posts: 154	I think it sounds awesome with the slp x and lm1 and the upr x is pretty much the same, and what do u mean it sounds ricey i think any exhaust on our car is far from ricey. __________________ 1997 Mustang GT Mac offroad H pipe, Loudmouth 1s weld ins, MGW short shifter, ford racing 3.73 gears, JLT ram air intake, Mach 1 chin spoiler. (Slowly getting parts for PI Swap!)

June 28th, 2008, 03:46 PM	#10
97S281 Enthusiast 1997 Saleen S281 Join Date: Feb 2007 Location: ZEBULON N.C. Posts: 741	x pipe's have more of a pitchy import sound. H pipes have more of a throaty growl. both perform excellent. most of your sound is gonna come from your cat back anyway. __________________

June 30th, 2008, 05:26 PM	#11
ModMustang97GT Enthusiast 1997 Mustang GT Join Date: Aug 2007 Location: Seattle, WA Posts: 681	All parts of your exaust make a difference to your sound. The Catback makes the biggest difference since it has the mufflers in it. X pipes make better hp, less torque, higher pitched sound than the H. Catted Vs. Non-Catted won't affect power untill you are pushing about 400HP. A mid pipe will amplify your sound a noticeable amount, but your stock mufflers will still keep it fairly quiet. I used to have LT headers, Catted H and a stock catback. It sounded good, but still fairly quiet. I put on a Mac 2.5" chambered Cat and it sounded awesome. But I had to swap the Catback for a Dump due to a panhard bar. The Dumps are really loud. I don't like them for daily driving due to the noise, but I unfortunately don't have a choice.

July 3rd, 2008, 12:03 AM	#12
spetz Newbie 1997 SVT Cobra Join Date: May 2008 Location: Denton, TX Posts: 26	I figured this would be easier and more "efficient" than creating a new thread on exhausts, so here's my question about my exhaust system. I currently have a completely stock exhaust system except for the mufflers which are both Flowmasters. (guy before put em on) My GT sounds okay, it's definitely louder than a stck GT but not by alot. And I definitely want the sound to be louder and I want better airflow. So I have been looking at getting SLP X-Pipes but I don't know if I should get shorty pipes or not? I don't plan on changing the headers for awhile but I do want to put a new Catback system on it, like the LM I's. Is it a good idea to put the SLP Midpipe and Catbacks with stock headers? Please let me know, I basically just want better airflow and a louder/deeper sound from my exhaust. (Meaning I don't want the V6 Camaro next door to my apartment to be louder than my V8 GT) Thanks for the help.

July 3rd, 2008, 12:42 PM	#14
spetz Newbie 1997 SVT Cobra Join Date: May 2008 Location: Denton, TX Posts: 26	Do I need the SLP shorty pipe or the longer one? Also should I go Hpipe or X?

July 5th, 2008, 07:05 PM	#15
spetz Newbie 1997 SVT Cobra Join Date: May 2008 Location: Denton, TX Posts: 26	Advice would be great! Someone with better knowledge or experience help me out here.

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July 6th, 2008, 12:16 AM	#17
Lefty MM's Most Laid Back 01' Cobra Vert. & 96' GT Join Date: Jun 2007 Location: Mechanicsburg, PA Posts: 1,969	ebo...youre in PA right? well i am too. they don't do visual inspection on cats. people think they do, but they don't. you just need to PASS emissions. MIL eliminators on an o/r mid pipe and you're good to go. the only thing is though that MIL eliminators are nearly friggin' impossible to find. you're best bet is ebay.

July 6th, 2008, 07:09 PM	#18
spetz Newbie 1997 SVT Cobra Join Date: May 2008 Location: Denton, TX Posts: 26	Is the only reason a shorty is cheaper because it can't fit the SLP headers without being replaced?

July 6th, 2008, 11:29 PM	#19
ebo 4356 Regular 1997 Mustang GT 15.2@92.52 (With bad launch) Join Date: Jul 2007 Location: Western Pennsylvania Posts: 154	yea I have mil elims. So they dont do a visual inspection, and and how far are you from Belle Vernon Pa. __________________ 1997 Mustang GT Mac offroad H pipe, Loudmouth 1s weld ins, MGW short shifter, ford racing 3.73 gears, JLT ram air intake, Mach 1 chin spoiler. (Slowly getting parts for PI Swap!)

July 11th, 2008, 10:49 PM	#20
97S281 Enthusiast 1997 Saleen S281 Join Date: Feb 2007 Location: ZEBULON N.C. Posts: 741	SPETZ, your stock exhaust does not have headers. It has an exhaust manifold. If you are going to keep the stock manifold you would need a midpipe that would bolt to shorty headers. If you are going to replace your stock exhaust manifold with headers I would recomend going with long tubes and a short x pipe. P.S. It's always better to start your own thread, it's easier to determin who's question is being answered. __________________