Code No. 33005-AT009



Combines superb efficiency and purification performance!







  • The HKS catalyzer has 150 cells compared to the stock catalyzer‘s 600 cells, resulting in a 40% lower exhaust pressure.
  • Gain an approx. 13PS advantage by just replacing catalyzer. (In-house test)
  • The outlet is made by lost wax casting in order to produce ideal layout.
  • The product satisfies the new emission regulations by selected a cell with an optimized ratio of catalytic precious metals.
  • WLTC emission tests are thoroughly conducted in-house, and a third-party test certificate is obtained.



Main material SUS304
Diameter of pipe φ85 (Front)
Close noise level  Stock 84dB (Idle: 58dB)
HKS 89dB (Idle: 59dB) *

*Measurements with the stock muffler. 93dB with HKS super turbo muffler (idling: 61dB)



■Flow Bench Testing







Vehicle Classification Model Engine Model Year Pipe Size Code No. Manual Remarks
GR SUPRA 3BA- DB02 B58 20/10 -22/09 φ85 (Front pipe) 33005-AT009 For RZ. Not compatible with 3BA-DB42 made from May 2019 to Sep 2020 and 3BA-DB06 made after Oct 2022.