where is the dyno sheet where you ran to full redline and got those numbers not doubting but would like to see., what size injectors , the stock injectors won't flow enough fuel for 260 hp????/?, also $ 350-370 right now needswings intake,underdrive pulleys from evosport, magnaflow cat back, drive to exhaust shop have them fab true dual if that is what you would like,i did not i feel it is not needed for the crossfire, and very happy with sound, inline fuel pump and 75 shot, well over the 260 mark for far less and safe when done right, thats what i opted for and very happy with it. half the price way more power eventually work on a tune compatible with my zex 82021 kit when it is available to get true dyno runs, not just a chip because of the spray