which is the best catback exhaust for the o5 s? which is gonna give me the most horsepower gain when installed with dc header? which will perform the best with kpro as well thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rollercosta123 &raquo;</TD></TR><TR><TD CLASS="quote">which is the best catback exhaust for the o5 s? which is gonna give me the most horsepower gain when installed with dc header? which will perform the best with kpro as well thanks.</TD></TR></TABLE>

The 05-06 Type-S exhaust is as good as any aftermarket exhaust with out all the noise. I have a DCRH, 06 S exhaust, and K-pro, it sounds great at WOT.

 

the stock 05-06 exhaust is good, but only to a point
for the cammed or f/i, its recommend

 

hey Terry do you have a soundclip? Im hopefully soon going to get a dcrh and use it with my stock exhaust. I only have injen cai right now and that alone makes the car sound like a beast at wot. thx

 

with a raceheader added on sounds great
i had i/rh/k-pro setup for about a year
you'll hear most of the noise from your esmm/torque damper than the raceheader itself, unless your gunning it
but there is a little rumble to it on idle

 

the stock 05-06 exhaust is really free flowing as it is, most aftermarket exhaust set-ups bottle neck to less than 2.5 ID, if you get a new exhaust make sure that it is a true 2.5 ID or larger if you want to see real gains.

 

IMO, it is not worth the 3-4 HP you'll get with an aftermarket exhaust over the 05-06 exhaust. Most of the 2.5" exhausts are too loud for a daily driver.

Just keep what you have--you've already paid for it.

 

what is the stock exhaust diameter?