i got my Z1 H pipe installed on monday finally. was fighting with the exhaust nuts from the mid-pipe to the h pipe.
noticeable sound increase at low RPM's including startup. not much difference above 3000 or 3500 RPM vs stock H pipe, stock mid pipe, and stock nismo muffler. should be back at the dyno in around 3-4 weeks to get another baseline before i install nitrous. can report back at that time with any HP gain. def feels like low end torque has picked up slightly but no doubt that is my brain justifying the purchase.
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'14 PW Nismo
Z1 CAI, Z1 HFC, Z1 Ported Upper and Lower Intake Manifold
DC Sports Stainless Headers, JWT C1 Cams, UpRev Tuned
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