ok i just finished putting stg 2 on about 2 hrs ago,easy install only took 2 hrs the hardest thing about the install was removing the pulley b/c theres no room for a puller to fit in there so we had to knock with a hammer gently a few times other than that everything went well. on a side note if you have the original 10 superchargers you will def have to relocate your temp sensor that is on top of your throttle body to your cai. no chk eng lights my car is hitting about 5 1/2 or 6 lbs of boost but the power is AWESOME! when you hit the gas pedal its amazing just the speedometer goes up so fast, believe or not i had someone in a mach 1 mustang mess with me on the way home from the garage and at first i was kinda of scared to really mess with him but i was so confindent with the power i wanted to see what the car would do so i actually punched it at about 15 mph and he did the same and at first i left him about 1 car and it stayed that way until 100mph and then at that point reason started to set in and i decided to let off. he flew past me of course b/c he did not let off when i did and at the light i pulled up next to him and he would not even look at me and his window was down, i looked at him and asked him how much hp his car came with? he looked at me and said,"evidently not enough" then he drove off. now i don't know how this would of ended up if this guy would of actually been expected me to take off the way i did, i think he was a bit suprised and i think he actually hestitated for a split second but i am very confident that this car can at least keep up with a mach 1 mustang or may just be a tad bit faster! worth every cent, i will have dyno tomorrow hopefully, if you have any ? please ask and i will try to answer them thanks i am going to go drive now. does anybody know what hp or whp and torque and weight of a 2003 Mach 1 mustang? i would really appreciate it :3_winkthu