might really look into this and see if it is worth it. from the few reputable guys i have spoken with, they say the non-intercooler vortech system is the way to go on a stock '05 motor. reason being the computer will be tuned for the engine at optimum settings which usually means when the car is cool. vortech's intercoolers are notorious for becoming heat-soaked after the engine is ran for a bit. that in turn will offset the tune as the parameters are no longer valid from the new computer program. the intercooler for the '05 vortech is only advertised to produce approx. 2 #'s more than the non-IC, and you will quickly lose those 2 #'s once everything is heat-soaked. hardly worth it for an additional $1300. just another vantage point to think about.