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  • HKS Hi-Power Muffler Exhaust Honda Civic Si Sedan | FC 2017-2019 | 31006-BH002
  • HKS Hi-Power Muffler Exhaust Honda Civic Si Sedan | FC 2017-2019 | 31006-BH002

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Hi-Power Muffler Cat-Back Exhaust

Fits: 17-21 Civic Si Sedan

$1,60000
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HKS Hi-Power Muffler Cat-Back Exhaust
Fits: 17-21 Civic Si Sedan
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Fitment

Please Note: 'Hi-Power Muffler' kept as HKS's official series name per the HKS Japan table header and dealer naming. Sedan-only fitment: the coupe variant is a different HKS part (31006-BH001). Buckets do not encode body style - documented here; closest valid label '2017-2021 Honda | Civic Si' used. Not on sale ($1600.00 = compare-at) - no On Sale tag. Media: 2 legacy images kept (provenance unverified); no official HKS product images attached - flag for Leo's media sweeps.
  • 2017-2021 Honda | Civic Si

Description

The HKS Hi-Power Muffler Cat-Back Exhaust for the 2017-2021 Honda Civic Si Sedan (FC1, 1.5L turbo) is HKS's race-inspired High Power & High Performance system for the 10th-generation Si sedan. A 65mm large-diameter pipe with a full straight structure cuts exhaust pressure to 50 percent of stock, letting the turbo run smoothly from low RPM for stronger output across the speed range - and the effect grows with tuning, supporting up to 500 ps without power loss. Dual 97mm titanium-look tips in SUS304 stainless steel deliver HKS's signature aggressive, resonant Hi-Power sound.

  • Fits 2017-2021 Honda Civic Si Sedan (FC1, 1.5L turbo)
  • Ti dual-tip Hi-Power muffler; 97mm tip diameter
  • 65mm (to 60mm) center pipe; SUS304 stainless steel construction
  • Reduces exhaust pressure to 50% of stock; supports up to 500 ps
  • Sound: stock 81 dB / HKS 92 dB (close)
  • Gaskets and installation hardware included
  • HKS part 31006-BH002

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