HKS Exhaust Subaru WRX STi Sedan (2011-2014) Super Turbo Catback - 31029-AF008

Fitment Information

• Subaru WRX STi Sedan (2011, 2012, 2013, 2014) 

Emissions Compliance

• HKS exhaust systems maintain all emissions equipment intact without any alterations, replacements, or modifications.

Specs & Features

• Exhaust System Type: Cat-Back
  
• Exhaust Tubing Material: 304 SS
  
• Exit Location: Dual Rear
  
• Main Tubing Diameter: 2.95" to 2.22" x 2
  
• Exhaust System Sound: Aggressive / Loud
  
• Muffler Body Shape: Oval
  
• Tip Quantity: 2
  
• Tip Finish: Burnt
  
• Tip Material: Titanium
  
• Tip Outlet Diameter: 4.90"
  
• Tip Shape: Round
  
• Tip Style: Ti-1
  
• Exhaust Series: Super Turbo Muffler
  
• Pieces: 4
• Close Noise Level:
• Stock: 78
• HKS: 89
• Works on stock and high-performance vehicles with upgraded turbines.
• Meets JASMA standards for performance exhaust sound.
• Engineered for a unique exhaust sound tailored to your engine.
• Boosts both horsepower and sound quality of your vehicle.
• Crafted from high-quality materials for long-lasting reliability.
  

Product Description

HKS introduces the "High-dimensional Super Turbo Muffler Debut," combining Exhaust Efficiency & Sound Pressure Reduction. Designed for stock to high-performance vehicles, it meets JASMA standards for performance exhaust sound. With an 85mm straight pipe and optimized layout, it's compatible with upgraded turbines while maintaining stock clearance. Engineered for various driving scenarios, it offers a clear cabin sound, minimizing lower exhaust resonance. Specifically tuned for the RB26 engine, its unique tone varies with throttle input and driving conditions, recommended for GT-R owners. HKS' "Slotted Tail" design, inspired by owl feathers, reduces air friction vibration, lowering sound by approximately 2dB. Through meticulous analysis, it delivers optimal tones both inside and outside the vehicle, eliminating discomforting low frequencies.