Everything ive read here states the exausts are mainly for sound and possibly a small HP gain (5hp) but when you check the sticky for the GReddy SP2 Catback Exhaust the dyno shows a 22hp gain... Im a noob but I have been reading on this. Can someone clarify this for me.

Thanks

 

they lie all in all dont believe everything you read.

 

I have that exhaust I think it gave me more of a 220 hp gain!!!

Just kidding, it is mostly for looks I thought the stock exhaust looked too small. Hopefully it aided with a few more ponies too.

 

check out what racingbeat.com says about exhausts they seem to be pretty on the ball. The sp2 is a nice exhaust and I think it sounds and looks nice but its been debated and you wont get much from a exhaust. If you want some more hp take a look at the rp supercat...I dont have either of these btw but i would get the rp supercat and keep a stock exhaust or get the sp2 as well