New 370z owner! Need some expert advice

forza370z

I have HKS. Not sure about power gain. At least my butt dyno tells me no big differences(with stock cats and tune). HKS sounds really nice and it's not loud just like stock nismo exhaust. So it might suit your needs well. But HKS pair with Berk or other HFCs WILL be quite loud.

I've heard MD exhaust in person so many times with both stock cats and test pipes. With stock cats, it's not loud and sound very VQ. Pure sex! With test pipes, it sounds very loud you can actually scare people by stomping on the gas. But still sounds very nice like race car.

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09 PW 370z Nismo | K&N Drop Ins | HKS Hi Power | Berk HFCs | Work Meister S1 3P | Project Kics R40 Neo Chrome Lug Nuts | KW V1 | SPC rear camber arms/toe bolts | Southbend Stage 3 daily clutch | Southband 19Ib Steel Flywheel | ZSpeed CSC