HKS Silent Hi-Power Subaru Impreza WRX STI GDB - 31019-AF015

The HKS Silent Hi-Power, part number 31019-AF015, is a catback exhaust for the Subaru Impreza WRX STI (GH-GDB) with the EJ20 turbo engine.

• Part number: 31019-AF015
• Muffler shape: HP (TYPE-S)
• Main material: S304 stainless steel
• Tip diameter: 120 mm
• Center pipe diameter: 75 mm
• Close noise level: 92 dB (stock 84 dB), measured at idle
• Road clearance: 135 mm (lowest point is the center silencer, stock suspension)
• Certification No.: 03S04122
• Fits the stock rear under skirt
• Not tested for STi SPEC-C and SPEC-C WR-Limited 2004

Fitment

• Subaru Impreza WRX STI (GH-GDB), EJ20 Turbo, 2004/06 to 2007/06, applied models E and F. (Source: HKS Japan)

Resources

• HKS Japan product page
• HKS Japan silent Hi-Power overview

Contact us if you are unsure of fitment or Size HERE