The HKS Hi-Power is one of the best flowing and best sounding exhausts for the 300ZX, and is still of very high 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 provides 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). The HKS Hi-Power will NOT fit on a 2+2 model.
- Style: Cat-Back
- Midsection: Resonated H-Pipe
- Piping Size: 65mm
- Muffler Tip: 120mm
- Material: Polished SUS304 Stainless Steel
- 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
Our new Compatibility checking feature is still being updated and revised. If you have questions about vehicle fitment, please contact us.
Does this install easily as oem or require fabrication/modifications to mount on a ‘90 300 z ?
- Richard deVarga
This is a direct bolt-on, as long as it's a 2-seater.
Would it fit a 1990 n/a model? If not what’s the difference between it and the turbo model
Yes, as long as it's a 2-seater.
Hello will this fit on a 1996 twin turbo 2+0, it doesn’t show a 1996 comparability
Hey Andrew, this will not fit the 96 without modifications as the 96 clocks the flanges at the H-pipe differently from the 90-95. So you would need to cut and re-weld the flanges on the cats, or on the H-pipe.