New exhaust ?'s

xBones · September 25th, 2011, 06:27 PM

so i have a 96 stang 3.8 getting a custom built true dual exhaust system made i plan on putting on flowmaster 40's also my problem now is the rattling underneath my car i think is coming from the cat? sometimes its there and sometimes its not ( it sounds like its right underneath the driver seat) can i totally delete the cat/back from the exhaust and be ok?

Also would a catless exhaust system i just mentioned sound better then one with?

Skargon · September 25th, 2011, 07:44 PM

Catless would be louder, But if you have to worry about Emissions Testing, You want to be sure to weld the plates up to look like you still have them, And Get MIL eliminators, You can get them from Americanmuscle.com

They keep your Check engine light from coming on because of the Deleted Cat's.

Also, It will be much Throatier without Them, Just have to worry about Johnny Law and his Inspections, If your state has them.

If you dont care that your Check engine light comes on without them, Go ahead and get rid of them and dont worry about the MIL eliminators, I would prefer to know if something ELSE is wrong with the car though, So I would Opt for them.

Try reaching under the car, And Rattling the Cat's and see if a heat shield is Loose on one of them.

PsnSnake_19 · September 25th, 2011, 07:50 PM

just gut the cats out dude and your light wont come on and they will see you have your cats

mustangmike! · September 25th, 2011, 08:03 PM

gutting cats wont cause a light ?

dschack · September 25th, 2011, 08:04 PM

My mil's from American Muscle are junk, they work about half the time

PsnSnake_19 · September 25th, 2011, 08:07 PM

Originally Posted by mustangmike!

gutting cats wont cause a light ?

not for mine it didnt at least they guy told me it shoudnt its like a 50/50 chance, and i helped him gut them their is nothing in their at all lol

mustangmike! · September 25th, 2011, 08:09 PM

hmm I figured it would obviously change the rear O2 sensor readings and probably throw a rich/lean code.

PsnSnake_19 · September 25th, 2011, 08:12 PM

yea i figured that 2 well at firsst i cut the rear cats and it didnt throw the code of course, then i decided to gut the cats instead of cut them just in case cops pull me over and when i turned my car on their is no light

6ER THEN I 8ER! · September 25th, 2011, 08:43 PM

that's weird...gutted cats do the same thing as cutting out cats or going with an o/r midpipe...maybe your cars ecm was retarded

PsnSnake_19 · September 25th, 2011, 08:54 PM

yea i know and the guy told me its a 50/50 chance and thanks for calling my car retarted meanie, i dont think he would appreciate that

PsnSnake_19 · September 25th, 2011, 08:55 PM

lol and idc if it is as long as my light didnt come on, its not like it would have bothered me though

6ER THEN I 8ER! · September 25th, 2011, 09:22 PM

Originally Posted by PsnSnake_19

lol and idc if it is as long as my light didnt come on, its not like it would have bothered me though

lol i just popped off my cluster and put a piece of black card stock over my CEL in my GT after my o/r prochamber install when the light came on....you wouldn't know it was there unless you were told it was

PsnSnake_19 · September 25th, 2011, 09:26 PM

lol your a smart guy

6ER THEN I 8ER! · September 25th, 2011, 09:27 PM

Originally Posted by PsnSnake_19

lol your a smart guy

lol...i don't even think that the dealer that bought the car from me as is noticed either

PsnSnake_19 · September 25th, 2011, 09:32 PM

lol that is the funny as hell haha

vnicastro · September 25th, 2011, 09:36 PM

If you are looking for an opinion, check out Spintech mufflers out of California. I have them on my V6 2003 and they sound better than any Flowmaster out there. The site has an area where you can hear them. Mark my words you won't regret it. Good luck.

6ER THEN I 8ER! · September 25th, 2011, 09:40 PM

spintechs aren't bad....although the ones i've been considering lately are flowpaths....i love me some flowpaths

xBones · September 27th, 2011, 06:00 PM

ok sorry for late response thanks for everything also im getting this exhaust done and my garage is telling me its going to be 600 for everything is that about right? Also i jacked my car up and checked the cat the shield is fine im just going to cut it off or gutt it anyways

6ER THEN I 8ER! · September 27th, 2011, 07:46 PM

Originally Posted by xBones

ok sorry for late response thanks for everything also im getting this exhaust done and my garage is telling me its going to be 600 for everything is that about right? Also i jacked my car up and checked the cat the shield is fine im just going to cut it off or gutt it anyways

well it's about $250-300 more then most people would pay unless your getting stainless steel mandrel bent tubing and an expensive name brand muffler...and not just standard flow 40's

honestly what i would do is check your local CL or salvage yards for a stock GT catback and take that to them...it'll be so much cheaper then paying them to bend tubing for the over axle part, and for the mufflers they can cut the stock GT ones off and swap in whatever brand you're buying from them

xBones · September 27th, 2011, 07:51 PM

ok cl? ill chck some of the salvage yards around me and ill be looking for the same year (96) gt exhaust?

September 25th, 2011, 06:27 PM	#1
xBones Newbie Join Date: Sep 2011 Posts: 22 iTrader: 0 reviews	New exhaust ?'s so i have a 96 stang 3.8 getting a custom built true dual exhaust system made i plan on putting on flowmaster 40's also my problem now is the rattling underneath my car i think is coming from the cat? sometimes its there and sometimes its not ( it sounds like its right underneath the driver seat) can i totally delete the cat/back from the exhaust and be ok? Also would a catless exhaust system i just mentioned sound better then one with?

September 25th, 2011, 07:44 PM	#2
Skargon Skar Gone 1998 Mustang V6 17.27@76.66 Join Date: Jul 2011 Location: Dayton Ohio Posts: 1,646 iTrader: 0 reviews	Catless would be louder, But if you have to worry about Emissions Testing, You want to be sure to weld the plates up to look like you still have them, And Get MIL eliminators, You can get them from Americanmuscle.com They keep your Check engine light from coming on because of the Deleted Cat's. Also, It will be much Throatier without Them, Just have to worry about Johnny Law and his Inspections, If your state has them. If you dont care that your Check engine light comes on without them, Go ahead and get rid of them and dont worry about the MIL eliminators, I would prefer to know if something ELSE is wrong with the car though, So I would Opt for them. Try reaching under the car, And Rattling the Cat's and see if a heat shield is Loose on one of them. __________________ 1998 5 Speed, CAI, Exhaust, Rear Seat Delete.

September 25th, 2011, 07:50 PM	#3
PsnSnake_19 Hardcore Enthusiast 2001 cobra Join Date: Aug 2010 Location: tampa Posts: 2,251 iTrader: 0 reviews	just gut the cats out dude and your light wont come on and they will see you have your cats __________________ SVT all day! Next mods: Mickey thompson street radials, new wheels, gears and tuner, then turboed by 2013

September 25th, 2011, 08:03 PM	#4
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	gutting cats wont cause a light ? __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

September 25th, 2011, 08:04 PM	#5
dschack Enthusiast 2000 sixxer, 1988 Fox Join Date: Mar 2009 Location: San Antonio, Texas Posts: 505 iTrader: 0 reviews	My mil's from American Muscle are junk, they work about half the time __________________

September 25th, 2011, 08:09 PM	#7
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	hmm I figured it would obviously change the rear O2 sensor readings and probably throw a rich/lean code. __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

September 25th, 2011, 08:12 PM	#8
PsnSnake_19 Hardcore Enthusiast 2001 cobra Join Date: Aug 2010 Location: tampa Posts: 2,251 iTrader: 0 reviews	yea i figured that 2 well at firsst i cut the rear cats and it didnt throw the code of course, then i decided to gut the cats instead of cut them just in case cops pull me over and when i turned my car on their is no light __________________ SVT all day! Next mods: Mickey thompson street radials, new wheels, gears and tuner, then turboed by 2013

September 25th, 2011, 08:43 PM	#9
6ER THEN I 8ER! Banned Join Date: Apr 2007 Location: Portland, TN Posts: 17,515 iTrader: 3 reviews	that's weird...gutted cats do the same thing as cutting out cats or going with an o/r midpipe...maybe your cars ecm was retarded

September 25th, 2011, 08:54 PM	#10
PsnSnake_19 Hardcore Enthusiast 2001 cobra Join Date: Aug 2010 Location: tampa Posts: 2,251 iTrader: 0 reviews	yea i know and the guy told me its a 50/50 chance and thanks for calling my car retarted meanie, i dont think he would appreciate that __________________ SVT all day! Next mods: Mickey thompson street radials, new wheels, gears and tuner, then turboed by 2013

September 25th, 2011, 08:55 PM	#11
PsnSnake_19 Hardcore Enthusiast 2001 cobra Join Date: Aug 2010 Location: tampa Posts: 2,251 iTrader: 0 reviews	lol and idc if it is as long as my light didnt come on, its not like it would have bothered me though __________________ SVT all day! Next mods: Mickey thompson street radials, new wheels, gears and tuner, then turboed by 2013

September 25th, 2011, 09:26 PM	#13
PsnSnake_19 Hardcore Enthusiast 2001 cobra Join Date: Aug 2010 Location: tampa Posts: 2,251 iTrader: 0 reviews	lol your a smart guy __________________ SVT all day! Next mods: Mickey thompson street radials, new wheels, gears and tuner, then turboed by 2013

September 25th, 2011, 09:32 PM	#15
PsnSnake_19 Hardcore Enthusiast 2001 cobra Join Date: Aug 2010 Location: tampa Posts: 2,251 iTrader: 0 reviews	lol that is the funny as hell haha __________________ SVT all day! Next mods: Mickey thompson street radials, new wheels, gears and tuner, then turboed by 2013

September 25th, 2011, 09:36 PM	#16
vnicastro Newbie 03 V6 Mustang convertible Join Date: Feb 2011 Location: Coral Springs Fl. Posts: 9 iTrader: 0 reviews	Spintech mufflers If you are looking for an opinion, check out Spintech mufflers out of California. I have them on my V6 2003 and they sound better than any Flowmaster out there. The site has an area where you can hear them. Mark my words you won't regret it. Good luck.

September 25th, 2011, 09:40 PM	#17
6ER THEN I 8ER! Banned Join Date: Apr 2007 Location: Portland, TN Posts: 17,515 iTrader: 3 reviews	spintechs aren't bad....although the ones i've been considering lately are flowpaths....i love me some flowpaths

September 27th, 2011, 06:00 PM	#18
xBones Newbie Join Date: Sep 2011 Posts: 22 iTrader: 0 reviews	ok sorry for late response thanks for everything also im getting this exhaust done and my garage is telling me its going to be 600 for everything is that about right? Also i jacked my car up and checked the cat the shield is fine im just going to cut it off or gutt it anyways Last edited by xBones; September 27th, 2011 at 07:08 PM.

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September 27th, 2011, 07:51 PM	#20
xBones Newbie Join Date: Sep 2011 Posts: 22 iTrader: 0 reviews	ok cl? ill chck some of the salvage yards around me and ill be looking for the same year (96) gt exhaust?

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