I had the Saleen 475hp Kit and upgraded to the 3.4 pulley, 107.5 Gates belt, Saleen Extreme Intake, Vacuum Line Kit and JDM Tune. It was a drastic Seat of the pants differance. Easily a 50hp gain. I was able to break into the 11.9 sec range in the quarter mile which isn't bad considering my car weighed 4050 lbs (it's a convertible).
Well worth the $900 for the upgrade.
Good luck,
Al
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2007 Mustang GT Convertible:
Grabber Orange, Black stripes, Black Cloth Top, 5R55 Transmission, Saleen Supercharger, 3.4 Pulley, Saleen Extreme Intake, 39 lb. Injectors, JDM Tune, Roush Tensioner, Pypes Mid-Muffler Exhaust, and ET Street Drag Radials.
Last edited by AKRA; 01-09-2009 at 11:50 AM.
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