Well I just bought an 06 Grand Prix gt supercharged! Pretty excited to get some things going..ive been reading around on here for the last two weeks and just ordered some speed daddy headers, $220 shipped. Debated them or zzp power log and downpipe and chose them! Plans are to get a cone, 180 thermostat, colder plugs, 3.6 pulley and PCM along the road..always looking for advice and to learn. I've been sure to read the safely modding your 3800! and look forward to all the good info! Thanks