I am setting up a friends 2005 Crossfire SRT6 with an E-85 conversion before the SRT meet in Indy This Easter Weekend. He already has a tune, fat *** pirelli p-zero corsa tires, cold air kit, and methanol injection. He also hopes to have his charger pulley by then, but we're not sur yet. I will leave info on how it goes, the car before tires, meth, and tune ran low 13 sec quarter. I've had the kit on my HEMI Ram for 3 months, and it has awesome power, and fuel mileage actually went up about 2 mpg!!! 105 octane, burns extra clean, with almost no odor, and we grow tons of it here in the great USA!!! Check out my site and see MYTHS BUSTED if you have doubts. www.mrpratede85.com!!!