Exhaust Setup

hookem · April 1st, 2008, 10:39 AM

Hey guys, new to forum and to modern muscle cars (only dealt with GM A bodies, really). My friend and I are planning a 500 HP 07' Mustang GT. I've narrowed it down to the Flowmaster Super 40's or 44's (I have 40's on my F-150 and they work great). My question is concerning the pipe layout, cats and headers.

Which configuration works best? X, H, or straight?
For 500HP, is it recommended to keep the cats. I know most muffler places won't remove them, but I have a guy that will gut them.
Finally, which headers work best? Short or long?

Last thing, may seem like a dumb question, but, are the stock GTs true duals?

El_Cangri · April 1st, 2008, 04:58 PM

get lts x pipe and gut the cats it will help a lot with the flow

no they have a H pipe so they are duals... true duals dont have a mid pipe they are just 2 different pipes that never intersect

04DSGV6 · April 2nd, 2008, 05:37 PM

gut the cats if you can get away with emissions and i hear that super 40's and 44's the difference is extremely miniscule

hookem · April 3rd, 2008, 10:40 AM

Yeah, that's one of the things I love about Texas...no emissions requirements! I'm afraid it may screw up any emissions sensors though. Anyone have this problem before?

HMUSN · April 3rd, 2008, 10:48 AM

they makes fixes for your sensors.

mil eliminators and tuners/chips can both fit that problem

95blackbeauty · April 3rd, 2008, 11:38 AM

Ya there are some mils for sale right now. Check the classifieds.

hookem · April 3rd, 2008, 03:24 PM

Yeah, we had planned on a tuner anyway. I'm not familiar with a "mil eliminator" however.

April 1st, 2008, 10:39 AM	#1
hookem Newbie 2006 Mustang TSS Join Date: Mar 2008 Location: Paris, Tx Posts: 33 iTrader: 0 reviews	Exhaust Setup Hey guys, new to forum and to modern muscle cars (only dealt with GM A bodies, really). My friend and I are planning a 500 HP 07' Mustang GT. I've narrowed it down to the Flowmaster Super 40's or 44's (I have 40's on my F-150 and they work great). My question is concerning the pipe layout, cats and headers. Which configuration works best? X, H, or straight? For 500HP, is it recommended to keep the cats. I know most muffler places won't remove them, but I have a guy that will gut them. Finally, which headers work best? Short or long? Last thing, may seem like a dumb question, but, are the stock GTs true duals?

April 3rd, 2008, 10:48 AM	#5
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	they makes fixes for your sensors. mil eliminators and tuners/chips can both fit that problem __________________

April 3rd, 2008, 11:38 AM	#6
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 911 iTrader: 0 reviews	Ya there are some mils for sale right now. Check the classifieds. __________________ 95 gt H.O. Udp's, Pypes O/r X, flowmaster 40's,CAI, 3.73 gears, C&L 76mm MAF,GT40p's, Shorties, 1.6 rr's,Gt40 manifold, short throw, Back Seat Delete BOOSTED

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April 2nd, 2008, 05:37 PM	#3
04DSGV6 Enthusiast 2004 Mustang V6 Join Date: Oct 2007 Location: Chicago,IL Posts: 546 iTrader: 1 reviews	gut the cats if you can get away with emissions and i hear that super 40's and 44's the difference is extremely miniscule

April 3rd, 2008, 10:40 AM	#4
hookem Newbie 2006 Mustang TSS Join Date: Mar 2008 Location: Paris, Tx Posts: 33 iTrader: 0 reviews	Yeah, that's one of the things I love about Texas...no emissions requirements! I'm afraid it may screw up any emissions sensors though. Anyone have this problem before?

April 3rd, 2008, 03:24 PM	#7
hookem Newbie 2006 Mustang TSS Join Date: Mar 2008 Location: Paris, Tx Posts: 33 iTrader: 0 reviews	Yeah, we had planned on a tuner anyway. I'm not familiar with a "mil eliminator" however.

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