HP Gain on stock catback with weld in flows vs aftermarket?

Pittbull · January 17th, 2010, 01:32 PM

If the piping is less restrictive I can see a aftermarket catback helping a LITTLE bit but no way in hell will u get 15+hp

MikeJones · January 17th, 2010, 01:38 PM

thats why i said 8-15. and flywheel not rear wheel. there is a difference pitt

MikeJones · January 17th, 2010, 01:41 PM

take someones rwhp and divide it by .85 and you get flywheel.

GrnBullitt08 · January 17th, 2010, 01:41 PM

+1 on everything stated above. You'll see minimal gains and a big differnece in sound until you and the midpipe and headers.

Pittbull · January 17th, 2010, 05:08 PM

Ha I kno mike u cool wit me

04steedaGT · January 18th, 2010, 10:24 AM

I spent $500 on my Flowmaster catback welded in with 3" tips. I jus noticed a small little tiny bit of HP gain BUT the sound was waaay more noticable. If i were to do it again, i wouldn't! I'd rather buy some nice shiney tips & spend the money on other performance parts.

January 17th, 2010, 01:32 PM	#21
Pittbull I Post Entirely Way Too Much 2001 Mustang GT If you're not first you're last Join Date: Sep 2009 Location: Rock Hill, SC Posts: 5,892 iTrader: 6 reviews	If the piping is less restrictive I can see a aftermarket catback helping a LITTLE bit but no way in hell will u get 15+hp __________________ Stock Rear Springs FOR SALE! PM Me Stock 99-04 GT Exhaust Manifolds FOR SALE! PM Me

January 17th, 2010, 01:38 PM	#22
MikeJones Hardcore Enthusiast 2002 Mustang GT 13.7@103 Join Date: Jun 2009 Location: Stoon, Saskatchewan Posts: 2,913 iTrader: 0 reviews	thats why i said 8-15. and flywheel not rear wheel. there is a difference pitt __________________ Mod6 Bigbore Kooks (parting out 2v motor) N/A 5.3 4v Build http://www.moddedmustangs.com/forums...ing-build.html

January 17th, 2010, 01:41 PM	#23
MikeJones Hardcore Enthusiast 2002 Mustang GT 13.7@103 Join Date: Jun 2009 Location: Stoon, Saskatchewan Posts: 2,913 iTrader: 0 reviews	take someones rwhp and divide it by .85 and you get flywheel. __________________ Mod6 Bigbore Kooks (parting out 2v motor) N/A 5.3 4v Build http://www.moddedmustangs.com/forums...ing-build.html

January 17th, 2010, 01:41 PM	#24
GrnBullitt08 Enthusiast 2008 Mustang Bullitt Join Date: Jan 2010 Location: Northwest, Indiana. (NWI) Posts: 715 iTrader: 0 reviews	+1 on everything stated above. You'll see minimal gains and a big differnece in sound until you and the midpipe and headers. __________________ MTR *SPEED LOGICS - RACE ENGINEERING* speedlogicsmtr@aol.com

January 17th, 2010, 05:08 PM	#25
Pittbull I Post Entirely Way Too Much 2001 Mustang GT If you're not first you're last Join Date: Sep 2009 Location: Rock Hill, SC Posts: 5,892 iTrader: 6 reviews	Ha I kno mike u cool wit me __________________ Stock Rear Springs FOR SALE! PM Me Stock 99-04 GT Exhaust Manifolds FOR SALE! PM Me

January 18th, 2010, 10:24 AM	#26
04steedaGT Regular 2004 Mustang GT Join Date: Jan 2010 Location: Arizona Posts: 199 iTrader: 0 reviews	I spent $500 on my Flowmaster catback welded in with 3" tips. I jus noticed a small little tiny bit of HP gain BUT the sound was waaay more noticable. If i were to do it again, i wouldn't! I'd rather buy some nice shiney tips & spend the money on other performance parts. __________________ JLT\|Steeda\|Eibach\|Tokico\|Ford Racing\|Polyurethane\|Flowmaster.

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