HKS Hi-Power Catback Exhaust 2015-2021 WRX / 2015-2021 STI

HKS has engineered this exhaust system to be free-flowing while delivering an impressive and enjoyable sound. By incorporating a built-in resonance pipe, low-frequency exhaust resonance is effectively eliminated, resulting in a clean and refined tone.

The system is crafted from high-quality stainless steel and features burnt tips for a striking appearance. Producing approximately 90dB, it captures the iconic boxer engine sound while enhancing the overall driving experience.

Details:

• 304 Stainless Construction 
• Twin-tube resonator 
• 97mm burnt tips
• 74.7mm to 60.5mm piping diameter
• Direct bolt-on to OEM downpipe
• Gaskets and hardware included
• 90dB sound output makes for a street friendly setup 

Note: A OEM Downpipe to 3in Cat Back Adapter may be necessary if the diameter of the new cat-back exhaust systems piping is different from the stock system, or if there are compatibility issues between the new components and the existing downpipe.