HKS Hi-Power Single Exit Cat-Back Exhaust - Subaru WRX (VB) 2022-2026
HKS Hi-Power Single Exit Cat-Back Exhaust - Subaru WRX (VB) 2022-2026, view 2
HKS Hi-Power Single Exit Cat-Back Exhaust - Subaru WRX (VB) 2022-2026
HKS Hi-Power Single Exit Cat-Back Exhaust - Subaru WRX (VB) 2022-2026, view 2

HKS Hi-Power Single Exit Cat-Back Exhaust - Subaru WRX (VB) 2022-2026

HKS SKU: HKS31006-BF002
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The HKS Hi-Power cat-back for the FA24 WRX replaces the factory quad-exit system with a single right-side, bullet-style straight-through muffler. Piping grows from the stock 60 mm to 85 mm, the mid-silencer is eliminated to cut weight, and the system is built from SUS304 and coated SUH409 stainless steel. A removable inner silencer adjusts volume and tone, and the 119 mm tail tip slides for a clean fit at the bumper. HKS measures close-proximity sound at 88 dB versus 74 dB stock with the inner silencer installed, with 128 mm of road clearance at the center pipe flange on stock suspension.

Specifications

Type Cat-back exhaust (HKS Hi-Power)
Layout Single right-side exit, bullet-style straight-through muffler
Piping Diameter 85 mm
Tip Diameter 119 mm, adjustable slide-out tip
Material SUS304 stainless steel / coated SUH409 stainless steel
Sound Level 88 dB (stock 74 dB), inner silencer installed
Road Clearance 128 mm at center pipe flange (stock suspension)
Engine FA24 turbo
Part Number 31006-BF002

This part fits:

Year Make Model Submodel
2022 Subaru WRX All
2023 Subaru WRX All
2024 Subaru WRX All
2025 Subaru WRX All
2026 Subaru WRX All

Shipping

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  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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