Quote:
Originally Posted by Red370
for some odd reason, the test pipes are either even or slightly less in the power making department. There are a few guys with full bolt ons, headers, intake, exhaust, hfc's making about 320-335whp, depending on the dyno, up from 275-285, that's pretty damn good I'd say! I think the average CAI, HFC, CBE combination nets about 30whp, not bad.
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320+ up from 280+ is mighty impressive. I think it's worth the cost then. I've already installed the hks suction kit so I'm done with the intake (nismos won't fit the Stillen CAI).
My main concern is sound too and 5zigen (along with Stillen) is the best sounding IMO. I'm willing to sacrifice some whp for that awesome sound. So definitely, HKS exhaust is crossed out of the list even if it could give me more power. Also, I kinda want to keep my japanese car with jdm parts (no offense to american part makers, just a preference). besides, it's waaay easier and faster to ship japanese parts to where I'm from. Any info on the whp gains on japanese exhausts would be appreciated
I'm rambling... I'll read more on the best full exhaust mods. thanks