# How much HP will an exhaust add?

**URL:** <https://forums.speedlife.net/t/how-much-hp-will-an-exhaust-add/254202>\
**Category:** Shift518 Automotive\
**Created:** [August 28, 2010, 4:58pm UTC](https://forums.speedlife.net/t/how-much-hp-will-an-exhaust-add/254202 "2010-08-28T16:58:55Z")\
**Posts on this page:** 1\
**Showing post:** 37

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**Author:** ![SSmokinn\_SS](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@SSmokinn\_SS](https://forums.speedlife.net/u/SSmokinn_SS)\
**Post date:** [August 29, 2010, 2:25pm UTC](https://forums.speedlife.net/t/how-much-hp-will-an-exhaust-add/254202/37 "2010-08-29T14:25:26Z")

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> [@FS: GSR Parts & some Civic](https://forums.speedlife.net/t/fs-gsr-parts-some-civic/34672/2):
>
> What do you mean still? Stock those 3.8’s run 15’s at best.
> 
> 14’s with a cam and supporting bolt-ons is pretty good IMO.

no, its not. Not when you can get 400rwhp out of 10psi on a bone stock motor all day long, with a stalled auto and run 12’s.

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