Originally Posted by MrNibiru

I decided to go with the Nismo R-Tune Exhaust because it is 2.5" and the fact it's Nismo. I felt that it's only right to put a Nismo exhaust on a Nismo. The exhaust also uses an H-pipe. I really wish I could do back to back dyno with an X-pipe vs H-pipe to see which makes the most power on the cars. But I think the power is negligible. I think it all comes to sound.