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  1. C

    how do you adjust an SCT X3 custom tune?

    I want to tweak my custom tune, and I can do it all day in my Jeep with the Diablo, but just got a 98 Cobra...... I want to fine tune the A/F & timing on my custom tune..... how do I do this? thanks,
  2. C

    wheel fitment problems....

    hey guys, I ordered a set of custom wheels (not going to mention name yet) Anyway I wanted 17X8s in front, and 17.9.5s rear. I am usuing 245/45/17s and 315/35/17s rear (they run smaller) I got the wheels and the fronts stuck out of the fender 2 inches, and the backs about an inch...
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    plugs for GT40X heads ???

    Hi guys, Does anybody know what spark plugs I can instll in some GT40X heads that are 2 steps colder??? thanks,