Thread: 1st time tuning/upgrading advice

Originally Posted by Lishap

Yeah cancel your ZZP order, ZZP PCM is trash, exhaust adds no performance benefit just mass drone. Get SD headers for like $200, a PCM tune from Overkill and drop to a 3.4......or just listen to ZZP and their lies and chip a piston, your call.

you need to clarify that statement because exhaust work is where many gains can be made. I think you meant catback, and even then there are situations where gains can be had, not every situation, but some.

Corrected.

So the 3800 performance PCM recommends a 3.4" pulley. Are 3800 Performance pulleys interchangeable with ZZP's? (I bought ZZP's hub and a 3.5" pulley).