Thanks for the welcomes...yeah, in addition to premium fuel...you'll also be doing alot to keep up that supercharger...not that it's a bad thing...I've been working on Eatons for about 6 years now...I also have a Grand Prix GTP...and trust me, change the pulley, do some exhaust work, and you'll be much happier with the power that produces....but an Eaton that only produces 210 HP over 180, not really worth it in my opinion...My '03 only cost me a little over 16k with the rebates...I'll take naturally aspirated over SC anyday to save a few thousand (as well as the usual upkeep)