I just had the Motordyne TDX2 catback exhaust and Motordyne ART pipes installed on my 2008 Z with the HR engine and then had it tuned with UpRev. The install and tune were both done at Z Fever in Tampa, Florida.

I was pulling 279 whp on their dyno after the Motordyne bolt-ons and before the tune. I pulled 288 whp after the tune. My only other mod is a Stillen cold air intake.

I was hoping to hit 300, but the guys at Z Fever told me these are still impressive numbers given that my only mods are the full Motordyne exhaust system and a CAI.

 

Nice results thanks for the post

 

+1

Pretty good results ya got there, Motordyne ftw

 

how many miles are on the car? i hit 286 when i did mine, but it was a mustang dyno (the heartbreaker).... i would think on a dynojet they would be higher.

the main question is.... can you tell any difference driving it... i know i could

 

115,xxx miles, so the engine has been around for a while. I bought it used at a dealership 100% stock, so it was probably somebody's daily driver car its entire life.

And yes, I can tell a big difference. The acceleration is so much smoother. It used to feel rough after 4,000 RPM, almost like the car was struggling to push higher than that. Now it revs right up to the red line smoothly. I attribute that probably to the tune itself and not the bolt-ons, but either way it's so much nicer than it was. I also feel like I can launch better and the gains between 2,000-3,000 RPM are noticeable when just cruising.

 

Awesome, he prob adjusted the drive by wire to a lowered threshold..... mine definitely seemed snappier. Enjoy it sir. I was at about 60k when i last had mine dyno'd