HKS Hi-Power Cat Back Exhaust Honda Civic SI Coupe 2017-2021 | 31006-BH001

Rated 5.0 out of 5
Based on 5 reviews
SKU: hks31006-BH001
Availability: 18 In Stock
Type: Exhaust Cat Back
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Regular Price: $1,100.00 - Instant discount: $250.01 = $849.99

Subtotal: $849.99
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Fitment Information:

2017-2021 Honda Civic SI Coupe


  • Improves horsepower, torque, and throttle response
  • Increases exhaust flow and power over stock
  • Loud and aggressive exhaust tone
  • Material: SUS304 Stainless Steel
  • Piping Diameter: 60mm (2.36 inches)
  • Dual Tip Diameter: 97mm (3.82 inches)
  • Gaskets and Hardware for installation included
The stock, rhombus wide-tip exhaust is pretty unique but not very powerful. Swtich it out for the HKS Hi-Power dual titanium tip center mounted cat back exhaust! With a 3.8in diameter tip, this muffler reduces the exhaust pressure by 50%! This allows the turbine to run smoothly at low RPMs which improves overall output. With tuning, the engine output can increase up to 500hp without power loss.

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