Diff do the Up-Rev tune through Stillen. Alot of ppl dont understand that you DO need to tune your car when you add parts to your ride. Try telling a guy with a subaru that adds a aftermarket intake and not tune his car. Car will run like S#*t, simple as that..
It will be one of your best investment you make on your car. Please note I donot work for Stillen- I just know there good at wt they do..
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