HKS Super Turbo Muffler W-Tail Subaru WRX STI VAB / WRX S4 VAG - 31029-AF013

The HKS Super Turbo Muffler W-Tail, part number 31029-AF013, is a cat-back muffler for the Subaru WRX STI (VAB) with the EJ20 engine and the Subaru WRX S4 (VAG) with the FA20 engine.

• Part number: 31029-AF013
• Main material: S304 stainless steel
• Tip diameter: 90 mm x 2 (left and right)
• Center pipe diameter: 75-60-54 mm
• Close noise level, WRX STI (VAB): stock 78 dB, HKS 85 dB (86 dB when used together with 33005-AF014)
• Close noise level, WRX S4 (VAG): stock 74 dB, HKS 81 dB
• Road clearance: 125 mm (lowest point is the center pipe, stock suspension)
• Product weight: 26.1 kg
• Certification No.: JQR40164092
• Compatible with the Subaru WRX STI S207, S208 and TYPE RA-R

Fitment

• Subaru WRX STI (VAB), EJ20 turbo, 2014/08 to 2020/04. (Source: HKS Japan)
• Subaru WRX S4 (VAG), FA20 turbo, 2014/08 to 2021/03. Compatible with 3BA-VAG made after Aug 2020. (Source: HKS Japan)

Resources

• HKS Japan product page, WRX STI (VAB)
• HKS Japan product page, WRX S4 (VAG)
• HKS Japan Super Turbo Muffler overview
• HKS USA product page

Contact us if you are unsure of fitment or Size HERE