Only at full throttle. The extra resonator took care of 90% of the rasp that I was experiencing during decel between 3 and 4K. It really smoothed out the engine note.
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Competition Clutch|Fast Intentions|Maxbore|NST|Setrab|Stillen|Tomei|Uprev| Z1
Avant Garde|SPC|Stance|Whiteline
Aerojacket|Seibon|Tanabe|TRS|TWM
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