How much hsp does this exhaust give a p11???

Also ...I don't like how the tip is so big. Could I change the tip?

I want dual tips.

Also does the exhaust sound like one of those civic exhausts that sounds like "wrrrr" or does it have a low growl like an m3 or something.

exhaust usually gives anywhere from 5-15 hp depending on what have in front of the exhaust. Should run you around 6 bills. In terms of sound? They said it's pretty much the Same as their Power Extreme just better ground clearance. So if you heard a Greeddy PE...there you go

Originally posted by fuzzynaval
exhaust usually gives anywhere from 5-15 hp depending on what have in front of the exhaust. Should run you around 6 bills. In terms of sound? They said it's pretty much the Same as their Power Extreme just better ground clearance. So if you heard a Greeddy PE...there you go

On the SR20DE, maybe 5. On a turbo engine, that's another story. Turbo engines really respond to large diameter piping and low restriction mufflers. Numerous SR20DE pilots have dynoed exhausts on their car and 5 is pretty much the max hp gain anyone has gotten (N/A). Most people get 3 or less.

Domestics tend to have shitty exhaust systems and some of them get big gains. Imports generally have pretty decent exhausts and don't get anywhere near those numbers.