Quote:
Originally Posted by doublea2527
I have the Fast Intentions exhaust and just ordered the Stillen Gen 3 intakes. When I put the intakes on, will it be absolutely necessary to get a tune or do you think it will be fine. I will be getting a tune in the future, but just don't have the means to right now and don't want to be too leaned out.
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Generally you're able to get away with the Gen 3 intakes, cat-back exhaust and EITHER HFC/TP or headers. When you run headers AND HFCs or Test Pipes, you'll be in a lean situation and tuning is mandatory.
That being said, most will go UpRev if they have Gen 3's, cat-back and HFCs, which will dial in the A/F ratio, and pick up 8-10whp..