Was this car tuned at all? We all know the stillen intakes lean things out a bit to make more power. HOWEVER Stillen recommends having the car tuned if you have thier intake, exhaust, cats and HEADERS. This car in this test had HFC's and Headers, which means it was running too lean to begin with, hence the power loss with the stillen intakes. Throw on the new TS intake and all the sudden the AF ratio richens up perfectly to make more power.
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