FAST 90/90 question
08-26-2007, 05:18 PM
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FAST 90/90 question Im thinking of buying the fast 90/90 for the setup i am curently running bc my car is not getting enough air into the engine above 4500 rpms, after i install the intake and tb will i need to get the car retuned again
08-27-2007, 11:01 AM
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Although not "required" to reap the benefits of the FAST you'd want the tune to be "touched up" at least. When I swapped to the 78 MM fast from the LS6 I gained about 3 HP untuned but with the tune I got another 5.