That was at silver dollar. I took it to commerce one time, and it was about a tenth slower. Same senario though, drove it there and didn't cool it off. What programmer do you have? An old cobra I had, had the same mods as yours except for the exhaust. It had the factory h-pipe, and a mac cat back. With a diablo predator, it made 480 to the wheels with a pretty much perfect tune right out of the programmer. I didn't even have to make any adjustments.Originally Posted by DieselNuts






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