• GReddy Supreme SP Exhaust Honda Civic SI Coupe 2017-2019 | 10158216
  • GReddy Supreme SP Exhaust Honda Civic SI Coupe 2017-2019 | 10158216
  • GReddy Supreme SP Exhaust Honda Civic SI Coupe 2017-2019 | 10158216

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Supreme SP Cat-Back Exhaust

Fits: 17-20 Civic Si Coupe

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Available To Order, Ships Around Dec 9, 2026
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Pay over time available · Est. $26.72/payment
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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

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GReddy Supreme SP Cat-Back Exhaust
Fits: 17-20 Civic Si Coupe
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Fitment

Please Note: Official GReddy series page (https://www.greddy.com/pages/greddy-supreme-sp): "Honda Civic Si (Coupe) 2017-20 (10158216)" - "2017-on Honda Civic Si Coupe (only)" (FC3, L15 Turbo). Coupe = 10158216 confirmed. Legacy "2017-2019" understates - official is 2017-20, corrected (MAPerformance says 2017-2021; GReddy says 2017-20). Buckets use 2017-2021 Honda | Civic Si (no 2017-20 bucket exists). Specs: 3pc, 76mm, dual oval SP mufflers, dual center-exit 115mm tips, resonator.
  • 2017-2021 Honda | Civic Si

Description

The GReddy Supreme SP Cat-Back Exhaust for the 2017-2020 Honda Civic Si Coupe (FC3) is a 3-piece system with 76mm (3-inch) piping and a resonator feeding dual oval SP mufflers with dual center-exit 115mm (4.5-inch) dual-wall tips. Straight-through and directed straight-through chambered designs deliver a refined note with more flow; hand TIG-welded 304 stainless steel with a Limited Lifetime Warranty.

  • Fits 2017-2020 Honda Civic Si Coupe (FC3) - coupe only
  • 3-piece cat-back; 76mm (3-inch) piping with resonator
  • Dual oval SP mufflers; dual center-exit 115mm (4.5-inch) dual-wall tips
  • Hand TIG-welded 304 stainless steel; Limited Lifetime Warranty
  • GReddy part 10158216

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Warranty and Support

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Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov