Hey guys!
I apologize if a thread similar to this was already posted. But I was just looking for some help with smaller pulleys for my 98 Grand Prix GTP. Currently I have colder spark plugs, 180* thermostat, and a cold air intake. I was wondering if I were to move down to a 3.5" would I need any more supporting mods? Or would I be okay. I originally had planned to just move down to 3.6", but I figured a 3.5" would give me more power, and I still wouldn't need all the expensive supporting mods. But I am not sure on that. If you could leave a comment with some help, that would be great!
Thanks,
-Connor