2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

FULL EXHAUST HP INCREASE???

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Old Apr 2, 2008 | 06:50 PM
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7STANG's Avatar
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Default FULL EXHAUST HP INCREASE???

Ok, I am having a little argument in another section about the horsepower gains with a full exhaust (LT's, mid pipes, no cats, mufflers). He is saying you would pick up 30 to 40 hp, I am thinking that is probably a little high. Also, are there any horsepower gains in just mufflers (slp, boomtubes, etc)? I am thinking no but I could be wrong. By the way the car is a S197 GT.

Thanks
Old Apr 2, 2008 | 06:56 PM
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Default RE: FULL EXHAUST HP INCREASE???

You can prob. pick up about 30-35 if you do longtubes, x-pipe no cats, and some kind of straight thru muffler and also a good tune. Remember the tune is everything. You pick up no hp from axle backs and if you do its no more then 2-3hp
Old Apr 2, 2008 | 07:01 PM
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Default RE: FULL EXHAUST HP INCREASE???

ORIGINAL: Mustang3GT07

You can prob. pick up about 30-35 if you do longtubes, x-pipe no cats, and some kind of straight thru muffler and also a good tune. Remember the tune is everything. You pick up no hp from axle backs and if you do its no more then 2-3hp
Thanks, but how much would you pick up without the tune? Sorry I forgot to mention the argument is either getting an exhaust or a CAI and a tune.
Old Apr 2, 2008 | 07:02 PM
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Default RE: FULL EXHAUST HP INCREASE???

from just the exhaust......15-20 on a N/A car maybe....
Old Apr 2, 2008 | 07:21 PM
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Default RE: FULL EXHAUST HP INCREASE???

ORIGINAL: howarmat

from just the exhaust......15-20 on a N/A car maybe....
Matt, what do you estimate the cost of a full exhaust to be? Again, cost was another part of the discussion. This is in the Street/Strip section if anybody cares. I could be totally wrong and if I am wrong I want to own up to it. Here is the link if anyone cares.

https://mustangforums.com/m_4863628/mpage_1/key_/tm.htm
Old Apr 2, 2008 | 07:24 PM
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Default RE: FULL EXHAUST HP INCREASE???

LT headers, o/r midpipe and free flowing mufflers will yield roughly 25rwhp. That is a rough estimate but I just wanted to give an average gain
Old Apr 2, 2008 | 07:26 PM
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Default RE: FULL EXHAUST HP INCREASE???

how much of that is from the LTs?

anyone care to guess how much of a gain with my setup of high-flow catted X-pipe & Borla Stingers?
Old Apr 2, 2008 | 07:42 PM
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Default RE: FULL EXHAUST HP INCREASE???

cost of headers varies a great deal so i cant really give you any good answer there......but project quick is right.

CAI/Tune~25hp

lts/midpipe/cai/tune~40

for N/A car you probably wont get more than 15 from the headers and midpipe if you already have a CAI and tune

People are comparing 2 different cars in that thread. The S197 is nothing like any other beast before, the same rules just dont apply really....our stock exhaust is much better than ever before, so getting tons of gains from it just doesnt happen

The best bang for your buck is CAI/tune.......end thread
Old Apr 2, 2008 | 07:50 PM
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Default RE: FULL EXHAUST HP INCREASE???

ORIGINAL: howarmat

cost of headers varies a great deal so i cant really give you any good answer there......but project quick is right.

CAI/Tune~25hp

lts/midpipe/cai/tune~40

for N/A car you probably wont get more than 15 from the headers and midpipe if you already have a CAI and tune

People are comparing 2 different cars in that thread. The S197 is nothing like any other beast before, the same rules just dont apply really....our stock exhaust is much better than ever before, so getting tons of gains from it just doesnt happen

The best bang for your buck is CAI/tune.......end thread
Thanks Matt. I hope its over to.
Old Apr 2, 2008 | 09:19 PM
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Default RE: FULL EXHAUST HP INCREASE???

ORIGINAL: howarmat

The best bang for your buck is CAI/tune.......end thread
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