I was reading on 3800 performance and looking at there stage 1 kit which basically includes a smaller supercharger pulley, CAI, etc. Ive read that ZZP is NOT the one to go with but they include the tuned ecu.

So, my question is.. is it safe to get just a smaller pulley without the ecu tune ? Im not planning on making a race car out of mine but would like a little more HP. IF I do drop to a smaller pulley I guess 3.4 is the one to go with ?