I am down to choosing between the Warpspeed 2.5" complete exhaust, or the Greddy SP2. Which one is better? I have been hearing good things about the new Warpspeed system that just came out making it quieter, deeper, and meaner. I also heard good things about the Greddy. Which one will give the best gains? I am planning on SC'ing also. Will post in SC forum too to see feedback. Thanks in advance.

Warpspeed: http://www.warpspeedperformance.com/nissan.htm

Greddy: http://greddy.com/products/products....aust%20Systems

 

Essentially the only difference will be in the sound, you can't really go wrong with either system. Personally I would go with the Greddy, just because I've heard good things about them. Thats not to say that you'd be dissappointed with the Warpspeed setup.