All 2017 - 2020 Honda Civic Si Coupe & Sedan. Please carefully select your variant, Coupe & Sedan exhaust lengths are different.
The HKS Hi-Power Exhaust is made in Japan by one of the most beloved JDM aftermarket tuning houses. Starting after the Front Pipe, this exhaust system is 65mm/2.5" all they way to the back where it enters into a single muffler, and then exits out of the Dual 97mm/3.8" tips with a Burnt Titanium Finish.
Manufactured with the industry standard 304 Stainless Steel. In terms of sound, expect around 67 decibels at Idle (OEM = 58 decibels), and 92 decibels at the highest (OEM = 82 decibels) with the stock downpipe and frontpipe. Enjoy the exhaust clip below
*Catback Exhaust System does NOT include a Downpipe or Frontpipe, we recommend either the 27WON or RV6 Combo that be purchased separately on our website.