Quote:
Originally Posted by blackcherry20
 OMG!
Checked out the exhaust videos..(This is the best forum ever-everything you need right here!)...anyway, the ones I like best are_-_-_->>>> drum roll please dddddddddd... :
Fast Intentions (AWESOME sounding!) what are the hp gains it wasnt with the video...
AAM Axleback Competition S-Line Short tail (no hp gains so why bother)
Invidia +13hp and +10 ft lbs ( woot)
HKS Hi-Power 10~15 hp gain
Have yet to check out cost. That will prob knock a few off the list too. 
Dang! can't believe how cool my Z is going to sound.... 
  need to make this post useless....had cup o noodles for lunch ...does anybody care ! aaahhhh  |
The way I understand it, the FI get pretty good gains.
But, for the most part, custom exhaust is more about sound/appearance than it is performance, because what is 15hp in a 3300lbs car that's already pushing out "near as makes no difference" 300hp? It's a drop in the bucket. And if you've got other breathing mods already on the car, remember that the advertised gains aren't cumulative. They are all relative to a stock component where the rest of the components are all also stock. Exhausts, headers, cats, and intakes work a little different when you mix and match, so the gains aren't obvious. In other words, 15hp exhaust plus 15hp intake does not necessarily mean 30hp gain.
Just something to noodle.
