SKU: 88590443967

GReddy 2017+ Honda Civic SI Coupe Supreme SP Exhaust

Sale price$289.78 Regular price$321.98
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Description

GReddy 2017+ Honda Civic SI Coupe Supreme SP ExhaustExpected availability November 2020. **2017 on Honda Civic Si Coupe (only)** The legacy of the GReddy SP lives on with GReddys best version yet, the Supreme SP and to prove it carries a limited lifetime warranty! From the 1st flange to the new double wall GReddy Tip, each Supreme SP system features a high quality, hand Tig weld 304 stainless steel outer construction. Within the muffler, new straight through and directed straight though chambered

Expected availability November 2020.

**2017-on  Honda Civic Si Coupe (only)**

The legacy of the GReddy SP lives on with GReddy’s best version yet, the Supreme SP and to prove it carries a limited lifetime warranty! From the 1st flange to the new double-wall GReddy Tip, each Supreme SP system features a high-quality, hand Tig-weld 304 stainless-steel outer construction. Within the muffler, new straight-through and directed- straight-though chambered muffler designs allow GReddy to engineer a more refine exhaust note while increasing exhaust flow and performance. Classic GReddy street performance styling is maintained with excellent fitment and a stylish exhaust system layout. The Supreme SP not only designed to perform and sound great for each specific application; it matches the vehicle’s body-lines and styling.

The unique dual muffler Supreme SP for the 10th generation Honda (FC3) Civic Si coupe features high-flow with a refined exhaust note. Under wide-open-throttle, spirited driving, the system offers the classic GReddy deep exhaust growl. To enhance the performance of the turbocharged 1.5L engine, this 3piece, cat-back exhaust connects to the factory piping (our system bolts to the factory exhaust system at the flange behind the engine/transmission) and expands to large 3” (76mm) forward-midpipe and mid-pipe that split to two polished, straight-through SP oval mufflers and dual center-exit dual-wall GReddy tips. This tip and muffler combination is a great compliment to the Si’s sporty, but wide rear bumper tip opening. (We also offer a similar, application-specific system for the (FC1) Civic Si sedan.)  Like all GReddy Supreme SP systems, the fully hand-welded 304 Stainless-Steel exhausts carry a Limited Lifetime Warranty.

Chassis:  FC3 coupe
Engine:  L15  Turbo
Type:   3" Cat-back with dual oval muffler with dual tips
Number of pieces: 3
Piping:   76 mm (3 ")
Tips:   2x 115 mm (4.5 ")
Gasket(s):    3 " oval (qty: 2 included) replacement
Resonator:   Yes
Weight:  TBA lbs   (Stock weight  TBA lbs)
Sound Comparison (SAE J1169) Test: TBA dB(a)
HP:  +TBA  hp
TRQ:  +TBA  ft-lbs


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88590443967

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Michelle Crawford
Birmingham, US
★★★★★ 5
Works perfect
Works as it should no problems
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Reviewed in the United States on August 7, 2025
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Lance Mercer
Chelsea, US
★★★★★ 4
Value
Gets stuck easy but used a screw driver to knock cap out
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Reviewed in the United States on November 12, 2025
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Sheldon
New York, US
★★★★★ 5
Fits my X5
Well fits the BMW X5 filter cover.
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Reviewed in the United States on April 21, 2025
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Stanps23
Whiting, US
★★★★★ 5
Reliable product
I would buy again. Quality construction. I searched every where looking for right size for my 2006 Volvo. No auto parts store in town carried the right size. Only big cities in Arizona have Volvo dealers. The closest was Vegas and Lake Havasu City. Thanks to Amazon saved me a long drive.
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Reviewed in the United States on January 28, 2024
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Matt Teed
Dallas, US
★★★★★ 5
Actually works on BMW!
I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!
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Reviewed in the United States on November 12, 2024

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