I had upgraded to F1 Long Tube Headers, Injen intakes and Magnaflow exhaust then bought the M370 and after tune and dyno I gained at lower end but lost at top end. So I sold them and just got upper and lower ported and happy. Was very disappointed with my setup using M370. Just my two cents
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Injen cold air intakes, Ported upper and lower manifolds, OS Giken LSD, F1 Long Tube Headers, Magnaflow CBE. Natural Baby
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