


HKS GR Supra Hi-Power 409 GC8 EJ20
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
HKS GR Supra Hi-Power 409 GC8 EJ20SKU: 31006 AF009 UPC: 4957266915974 HKS Hi Power 409 Muffler Subaru Impreza GC8 EJ20 Turbo 1993 1999 The HKS Hi Power 409 muffler delivers precise engineering for Subaru Impreza GC8 models with EJ20 Turbo engines from November 1992 to August 1999. This catback system fits 2 door sedan configurations and upgrades stock exhaust with larger piping for freer flow and aggressive tone. Expect noticeable gains in throttle response and horsepower alongside a
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Exchange/Return Notes
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4.1 ★★★★★
Based on 1337 reviews
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Product Reviews
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2023
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
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Reviewed in the United States on July 13, 2025
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
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Reviewed in the United States on February 20, 2024
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
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