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Would full exhaust get me 300 rwhp?

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Old May 26, 2005 | 08:46 PM
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Default Would full exhaust get me 300 rwhp?

I know my car dynos around 265-270 rwhp stock, would a full exhaust sytem put me at or close to 300? Ive read a few articles that did a dyno and the most they got with headers,xpipe,and cat back was 301.2 rwhp. It sounded convincing to me. They had stock dyno, with headers only, with headers, and x. And so on...
Old May 26, 2005 | 08:59 PM
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Default RE: Would full exhaust get me 300 rwhp?

longtubes, xpipe and catback should give you 20-30 rwhp on your cobra, so if your current hp assumptions are correct, then you should be close
Old May 26, 2005 | 11:24 PM
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Default RE: Would full exhaust get me 300 rwhp?

MM&FF squeezed 55 RWHP out of BBK longtubes, offroad X (I think it was an X pipe) and a catback system, then brand I can't remember. But, that was a '02 Cobra I think. But, with long tubes, and offraod pipe and straight through catback (MAGNAFLOW/SLP) you should easily pick up 30 HP at the wheels of your DOHC.
Old May 27, 2005 | 12:45 AM
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Default RE: Would full exhaust get me 300 rwhp?


ORIGINAL: Emann0007

MM&FF squeezed 55 RWHP out of BBK longtubes, offroad X (I think it was an X pipe) and a catback system, then brand I can't remember. But, that was a '02 Cobra I think. But, with long tubes, and offraod pipe and straight through catback (MAGNAFLOW/SLP) you should easily pick up 30 HP at the wheels of your DOHC.
I didnt know they had 02 Cobra's in the US?
Old May 27, 2005 | 01:00 AM
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Default RE: Would full exhaust get me 300 rwhp?

me either but it's in the parts catalog at autozone I was like huh thats wierd didn't know there was one.
Old May 27, 2005 | 01:44 AM
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Default RE: Would full exhaust get me 300 rwhp?

nice, im excited now
Old May 27, 2005 | 04:03 PM
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Default RE: Would full exhaust get me 300 rwhp?

If you want to get to 300RWHP....just spray it. Simple and cheap! A nice 75 wet shot on there would be nice and sneaky!!
Old May 28, 2005 | 12:24 AM
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Default RE: Would full exhaust get me 300 rwhp?

did I type '02???? my bad... it was an '03 but still 55RWHP is a lot for full exhaust.
Old May 28, 2005 | 12:44 PM
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Default RE: Would full exhaust get me 300 rwhp?

rule of thumb is whatever the manufactures say, cut that number in half. So 50hp really means 25hp.
Old May 28, 2005 | 11:29 PM
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Default RE: Would full exhaust get me 300 rwhp?


ORIGINAL: Quatrocky

I know my car dynos around 265-270 rwhp stock, would a full exhaust sytem put me at or close to 300? Ive read a few articles that did a dyno and the most they got with headers,xpipe,and cat back was 301.2 rwhp. It sounded convincing to me. They had stock dyno, with headers only, with headers, and x. And so on...

Answer, no...........



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