I added an aFe Power throttle booster this evening and all I can say is, "I wasn't expecting that!" I almost broke my headrest when I launched it. It also makes the launch function on the car actually launch the car instead of the disappointing lag. The red setting is the one I'll be using for the track coming off of turns into straights... The green mode is great for daily driving if you're looking for smooth and fast throttle responses... There are three settings: No light = off Green light = sport Red Light = track (also may be known by as "new underwear needed after use)." You can find them here: Module aFe Power Sprint Booster Dodge Challenger 09-13 V6 V8 A T 77-12002 - aFe Power Anyone else install this or a product similar?