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HKS

Super Turbo Cat-Back Exhaust

Fits: 08-14 WRX/STI Sedan

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HKS Super Turbo Cat-Back Exhaust
Fits: 08-14 WRX/STI Sedan
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Fitment

Please Note: HKS USA official (hksusa.com EXHAUST category page): 'SUPER TURBO MUFFLER GVB/GVF', Product# 31029-AF008, application listed as Model 'IMPREZA WRX STI 4D', Year 2011-2014, Engine EJ257, Chassis GVF, AWD, MSRP $2,500.00. Sedan-only system - fitment buckets do not encode body style; documented here. (US-market 2008-2010 STI was hatch-only, so STI sedan coverage is 2011-2014.) Not on sale ($2500.00 = compare-at) - no On Sale tag.
  • 2008-2014 Subaru | WRX STI
  • 2008–2014 Subaru | WRX

Description

The HKS Super Turbo Cat-Back Exhaust System for the 2008-2014 Subaru WRX and WRX STI Sedan combines exhaust efficiency with sound pressure reduction, developed by HKS's turbo-engine specialists. Mandrel-bent SUS304 stainless steel tubing runs 3 inches tapering to dual 2.4-inch splits, feeding the signature SSR (Super Turbo Muffler) rear section with dual 4.9-inch (124mm) tips. It delivers a unique engine-specific exhaust note that meets the JASMA standard - 89 dB close / 61 dB idle - effective from stock to high-horsepower builds with upgraded turbines. The system includes the center pipe and bolts on with the supplied hardware.

  • Fits 2008-2014 Subaru WRX and WRX STI Sedan
  • SUS304 stainless steel; 3 in tubing tapering to dual 2.4 in splits
  • Signature SSR Super Turbo muffler; dual 4.9 in (124mm) tips
  • Sound: 89 dB close / 61 dB idle; meets the JASMA standard
  • Includes center pipe; installation hardware included
  • Effective on stock to high-performance vehicles with upgraded turbines
  • Note: GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter (p/n 077046) required when retaining the stock J-pipe/downpipe
  • HKS part 31029-AF008

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