Jeff's 2007 GT500 with intake, 2.6" pulley, and dynotune 542RWHP/

[Justin@VMP]

Jeff's 2007 GT500 has over 1000 miles on it. The car made 448RWHP stock, they generally make anywhere from 420-465RWHP depending on how hot or cold the car is, the timing (and thus power) is greatly effected by the temperature of air coming out of the intercooler. The car picked up around 45RWHP from a quick tune, about 20RWHP from the intake, and another 30RWHP from the 2.6" upper pulley (about 2.5-3 more psi). Car has stock cats with borla mufflers.


http://www.vmptuning.com/dynographs/jeffalloy.jpg