Hey guys. I'm new to this whole forum thing, but I heard it's really useful. I have a 2000 Grand Prix GTP. I have a cold air intake and and MBRP resonator. I've been wanting to add mods to my car for awhile now, and so I did some research and got a 3" downpipe w/cat and u-bend delete, 180* Tstat, autolite 104's, polyurethane upper motor mounts and a 3.5 s/c pulley. I haven't installed any of these mods yet, but I want to double check if I need anything else in order for my engine to not blow up from the decrease in pulley size. Thanks in advance
