GTP Boosting

Hey there I am looking to put a smaller pulley on my GTP. Has anybody out there done this with good results? If so what kit did you use!

Cheers

Im willing to bet over half of us here are running pulleys. They are an easy way to gain a good amount of HP, but dont be fooled, they're not completely safe for ur engine and you're going to need other mods to combat the Knock Retard that will result from the pulley. Some things that do this are a PCM, Colder plugs, Colder T-stat... All of these are relatively cheap. Bottom line, dont just throw a pulley on and start slammin ur foot down because bad things will happen ( i just had to replace my entire engine ). Also, unless you're going to intercool, DO NOT GO BELOW A 3.4 PULLEY.

Be careful and do it right and you will get plenty of life out of a pullied L67.

I run the 3.4 pulley from 3800 performance.

ya...thats kinda what i have been hearing. Do you need a pulley puller to do it? What kit did you use?

Yes u need a puller. There's a thread going on right now about where to find them and some more details so go check that one out.