First off I had this tune done at SpecialtyZ in Chatsworth, CA. Sebastian took care of the tuning and answering a hundred and one questions for me Now first of all, I was going to go to Churches, but they wanted $450 to retune even though I already had Osiris Standard Sebastian took care of me for just $275 and even took the time to look at a wheel bearing issue I was having, afterwards. I am very pleased with Specialty Z as a company/shop and Sebastian in particular. I will begin by noting my previous mods:

Z-Tube
K & N Drop-in
Full Stillen CBE
Kinetix Plenum V+
Osiris Standard
...& a butt load of DIY small preventative, performance minded maintence.

And I attest my maintence discipline to my G's relatively good numbers.

Keep in mind that the stock tune is actually an E-tune (might as well be stock- useless).







As you can see the top end of the power band WAS terrible, and of course A/F's were off all over the place. Sebastian did a great job, and i think I did as well restoring a G that was not running very well when I purchased it. To give you an idea, I cleaned TB, MAF, ran seafoam, replaced sparkplugs, switched to synthetic, changed diff fluid, changed trans fluid, replaced PCV valve, thermostat, and more.

Since this tune I replace stock cat's with Top Speed TP's and they sound absolutely terrible above 3k rpm. Right now Sebastian has my car back in the shop and were adding a little whoosh, which btw will hopefully get rid of some rasp....Adding a snail is cheaper than replacing TP's afterall, right??

Edit: In case you can't tell, I gained a peak 17rwhp and 7rwtq...not bad numbers at 265rwhp and 237rwtq for a 7-8 y/o Rev up with 92k miles.

 

So the dyno was on the stock cats?

Nice results.

Looks like an MREV2 and ART pipes would help.

 

Thanks. Yes it was stock cats, but I have TPs now...and a turbo otw.