I'm not saying HKS is a POS, but I have heard A LOT more people ask/talk about F. I. than HKS. Seems that F. I. has a lot of options to chose from, but then I have never really bothered to look into HKS for exhaust. HSK is an all around good company, but their exhaust for the Z wouldn't be my top five.
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l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l
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