• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Got a new Grand Prix!

Bessesen2

Bessesen2

New member
I recently sold my 1998 GP GT and replaced it with a 1999 GP GTP!! I like it so much better. It's got more things like Bose sound system and a supercharger! The power difference is amazing. First upgrade it going to be a smaller pulley. How small can I go without changing and internals??
 


You can't make a pulley drop your first upgrade. Like Keith said, rethink it if you like the car and don't want to break it.
 
I just posted a link to a thread that will help you out in your pulley size thread. Go read through it and if you have any questions afterwards ask.
 


exhaust for flow, (headers), then you can go down to a 3.5-3.4 pulley, but i would get a tune after those mods, incar or dyno tune
 
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