HKS Super Turbo Muffler Catback Exhaust (15-21 WRX/STI)
Super Turbo Series™ 304 SS Cat-Back Exhaust System with Quad Rear Exit (31029-AF013) by HKS®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.95" to 2.36" and 2.13". Exhaust System Sound: Aggressive / Loud. Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to upgrade both the horsepower and sound of your precious vehicle. Made from first class materials, it will serve you for years to come. Exhaust Efficiency & Sound Pressure Reduction are implemented together. The turbo engine master HKS challenged to implement the following 3 characteristics together to develop Super Turbo Muffler.
Features
Exhaust System Type: Cat-Back
Exhaust Tubing Material: 304 SS
Exit Location: Quad Rear
Main Tubing Diameter: 2.95" to 2.36" and 2.13"
Exhaust System Sound: Aggressive / Loud
Muffler Body Shape: Oval
Tip Quantity: 4
Tip Finish: Burnt
Tip Material: Titanium
Tip Outlet Diameter: 3.54"
Tip Shape: Round
Tip Style: Ti-1
Exhaust Series: Super Turbo Muffler
Pieces: 4
Sound Level Stock: 74 dB
Sound Level HKS: 81 dB
Idle Sound Level Stock: 55 dB
Idle Sound Level HKS: 62 dB
Benefits
Effective on stock to high performance vehicles w/ upgraded turbines.
The performance exhaust sound meets the JASMA standard
Unique exhaust sound designed specifically for the engine
Upgrades both the horsepower and sound of your vehicle