HKS Hi-Power Cat-Back Exhaust - 09-20 Nissan 370Z

Regular price $2,100.00 USD $1,642.20 USD

Ready To Ship! Special Order! Ships in 10+ weeks

Part # hks32009-BN004

Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications. HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path. For Toyota Corolla Hatchbacks, check out our HKS Legamax Sports exhaust system.

For turbocharged applications, the large and smooth exhaust flow allows greater exhaust velocity for better mid-range boost response and high-RPM power. Naturally aspirated vehicles also benefit from greater exhaust flow capacity as engine tuning levels increase. Certain applications are available in a Silent Hi-Power version which has an inner silencer built into the muffler. Like Drager Exhaust systems, HKS Cat-Back Exhaust systems are made from SUS304 stainless steel muffler and tip assemblies. Depending on the application, Hi-Power muffler tips are 96mm, 115mm and 120mm in diameter, piping diameter ranges from 55mm to 95mm. Special Edition HKS Carbon Titanium Hi-Power Exhaust systems are exclusively available for certain popular applications. These exclusive versions of the Nissan 370z Cat-Back exhaust consist of a carbon fiber wrapped muffler shell, titanium tip, and polished SUS304 stainless steel piping.

  • Nissan 370Z [Z34] (2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020)


  • Full Dual Polished SUS304 Stainless Steel Exhaust System
  • Adjustable Titanium Tips
  • 4.75" diameter tips and 2.4" diameter piping
  • Works on 370Z and 370Z Nismo Model (relocation of factory rubber mount required)
  • Removal of Emission Canister Shield Required
  • Includes H Pipe

Extended Information

  • Type: Full Dual Cat Back Exhaust with H Pipe
  • Piping Diameter: 60 mm
  • Tip Diameter: 120 mm
  • Material: SUS304 Stainless Steel Piping with Titanium Tips
  • Notes: Requires removal of emissions canister shield. Nismo Model requires the relocation of factory rubber mount.
  • Warranty: 4 Year under HKS USA
  • Necessary hardware included

Customer Reviews

Customer Reviews

Based on 14 reviews
Alton C. (Houston, TX, US)

Best exhaust system hands down, an guys T kimi were great to deal with..

Maher A. (Doha, DA, QA)
Everything was amazing

Part was in perfect condition and kamispeed support was very helpful. I’m very happy with this purchase will definitely be using kamispeed again

Bonan L. (La Habra, CA, US)
HKS Hi-Power Cat-back Exhaust

The shipping box has a hole from the top and bottom. After unpacking, discovered exhaust tip is bent inwards to a very noticeable degree. Don’t know it was damaged from manufacturing or shipping. I have to bang it as straight as possible to my best ability to make it not noticeable, but still ain’t straight all the way. And I waited almost 3 months for the exhaust to ship over, unsatisfactory

Ahmad H. (Irvington, NJ, US)
Hks hi power exhaust

Ordered Saturday night, was delivered monday around noon. Couldn't ask for anything better.

Felipe G. (Garden Grove, CA, US)

Came in great and quick. Also live the sound to it

Cesar G. (San Antonio, TX, US)
Great product and quick delivery!

I got this very fast and was impressed on how it looks. This exhaust is great if u like to daily it without annoying ppl. The power difference between this and the stock is very potent in response. I have not seen any dyno # but still a better improvement over stock. I had mine installed at a local shop and they said it fit perfect even tho some parts under the car were previously moved around. Overall great improvement.

Bryan (Hialeah, FL, US)
HKS Exhaust

Had exhaust delivered in an extremely timely fashion, in addition to that the exhaust just sounds amazing. As previous reviews have mentioned it is not the loudest at idle, but once you actually get going it is amazing. Definitely would recommend.

Customer Questions


In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail.
All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

All international orders outside of the USA are subject to duties and taxes per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.