i have a zzp intake and 2.5 downpipe, i also have the gm stage 2. i have put thought into taking my car to gm dealershipe and have them install the stage 2 and do tune, they can deal with the pulley hehe so has anyone ever ran a setup like that and had any sorts of problems???????? thanks for your time.

 

Why would you have problems with the stage 2 setup?

The biggest downside to it is that it is not an ideal tune, it's just a generic safe tune. It will be quicker than it is now, but not as quick as a custom tune. Install the pulley and injectors and get a custom tune.

 

I essentially have a GM Stage 2..

GM Stage 1 Tune
GM Stage 1 Injectors
GM Stage 2 Belt
ZZP 3.0 Modular pulley
ZZP 3" Intake
ZZP Midlength header
ZZP Catted 2.5" downpipe
Unknown Catback

You can tell the tune is no where near spot on, but its NIGHT AND DAY !!

I am getting dyno tuned in a couple weeks (pending funds)

 

I'm not calling you a liar, I'm just curious. Its really night and day with a 3.0 pulley?? I haven't staged yet and I am just wondering.

 

From my own experience with a custom tune yes, on GMS Tune...its eeeeh ok, barely felt the difference

 

Yes. 3psi makes a big difference, especially with the better tune.

 

Compared to when I got it. It had the GM Stage 1 and a catback. I added all that other stuff in a month span. So the change is huge lol. Yea im hitting 15 PSI with a free flowing exhaust and intake. Feels great

 

Does anybody have a stage 3 pulley for sale

 

Check out classified section, I saw a few earlier that you can grab for cheap.