From personal experience and my own research. Any exhaust with a Helmholtz resonator (Motordyne, HKS Hi-Power, ARK Grip) have VERY little drone due to the design. Resonated pipes alone DO help but, not quite like the Helmholtz design does.
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Rays GramLights 57Fxx BM w/red centers-Michelin Pilot Sport tires-Motordyne CBE-Nismo red calipers-Z1 (SS lines/Slotted rotors)-Motul fluids-Whiteline diff bushings-Redline fluids-JDM fog lamp-GTR start button-Optima Yellow Top-EVO-R B pillars-Custom GPS mount
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