GReddy EVO 2 vs. 5Zigen 3

djgcue · 2004-06-09 01:27:31

I justed installed the GReddy EVO 2 Exhaust. Prior to this 5Zigen built a custom cat-back 3" inch exhaust for my TT set-up. I was not able to dyno the car with the prototype exhaust, but on half throttle w/ the 5Zigen exhaust I smoked my rear tires. Possibly a sign of significant HP gains. One thing I did notice with such a free flowing exhaust boost lag became apparent. Also with my Kinetix straight pipes w/ resonators the 5Zigen prototype was way too loud inside the car. The 5Zigen prototype has been taken off my car and is being sent to Japan. If the prototype is produced it will be much quieter as presilencers and resonators will be added. On my prototype we only installed a glass pack. GReddy supplied their EVO2 exhaust which features dual cat back 2.5" piping w/ X-pipe. The exhaust is quiet almost stock but more aggressive sounding at full throttle. Although it appears my car has lost some HP due to the more restrictive GReddy vs. the custom 5Zigen exhaust. GReddy claims 15-20 rwhp with a twin turbo set up on the EVO 2 exhuast. There is no longer any boost lag with the Greddy and the sound is so much more bearable. I have pictures of the prototype 5Zigen and Greddy EVO 2 exhaust kits on my website DJ G-Cue's Project SEMA G35 visit: www.djgcue.com (http://www.djgcue.com)