HKS 31029-AZ001 Super Turbo Muffler Mazda RX7 FD37 ymm_62 The system incorporates BORLA's Polyphonic

The system incorporates BORLA's Polyphonic Harmonizer Technology

The racing main catalytic converters meet high exhaust gas purification standards

the tailpipes are larger than stock and share a similar profile with the Akrapovic exhaust developed for the Toyota GR Supra

The single eye-opening design improves visibility while maintaining full coverage

BMW 3 Series (G20

HKS 31029-AZ001 Super Turbo Muffler Mazda RX7 FD37 ymm_62 The system incorporates BORLA's PolyphonicAbout HKS muffler *1: About center pipe Diameter of center pipe is the portion that has the largest diameter. (Excluding silencer and tip.) It is the condition with stock suspension. *2: Minimum road clearance between HKS muffler (Any parts included in the kit) and road surface. Therefore, it may be different from actual road clearance of the vehicle. The data is basically the condition with stock suspension. However, please understand that some items