The HKS Hi-Power is one of the perfect flowing and perfect sounding exhausts for the 300ZX and is still of outstanding quality despite the low price. Hi-Power Exhaust systems incorporate a race-inspired angle mounted stainless-steel muffler and piping design for greater flow and higher-RPM power gains, which gives a less restrictive path for exhaust gasses compared to many exhaust systems, which mimic the stock exhaust with two ~90° bends. The large, angled mufflers compliment cars with a low, wide, aggressive stance. You can expect a 20HP gain on a Twin Turbo, and a 10HP gain on Non-Turbos (Coupe Only).
PLEASE NOTE
Dual Exhaust, 3.0 Turbo, This exhaust will NOT fit on a 2+2 model
Idle Volume: Approximately 70dB interior, 72dB exterior (at side of car), 85dB exterior (at rear of car) -- tested on a TT with 2.5" non-resonated test pipes and 2.5" downpipes
