HKS Hi-Power Cat-Back Exhaust | 2017-2021 Honda Civic Si Coupe (31006-BH001)
HKS10th Gen Honda Civic Si Coupe Hi-Power Cat-Back Exhaust System by HKS
This "Hi-Power" exhaust system from HKS was designed with both style and performance in mind. Features SUS304 stainless steel construction, a piping diameter of 60mm, and a tip diameter of 97mm. This exhaust system is guaranteed to increase exhaust flow and power over stock, as well as offer an improved exhaust tone.
Features
- SUS304 Stainless Steel Construction
- Piping Diameter of 60mm
- Tip Diameter of 97mm
- Signature HKS Hi-Power Muffler
Benefits
- Increased Performance & Power
- Improved Exhaust Tone
- Stylish & Appealing Design
Applications
- 2017 - 2021 Honda Civic Si Coupe
What's In The Box?
- 1 - HKS Hi-Power Catback
- Gaskets and Hardware
Warranty
- Manufacturer Standard Warranty
Customer Reviews
Put this on my 18 si coupe and it sounds amazing, louder and deeper growl than stock. Already had a CAI and tune but this balanced it all out at higher rpms and runs great! Deeper richer tones without being obnoxious to neighbors while still giving a big boost over stock
Best sounding exhaust for the 10th gen si easily, low deep tone considering its a 1.5 4 cylinder. Most of the other exhaust sound like a can of bees but hks really has a nice refined sound to it. Be aware I personally had a 3 -5 day break in period where the drone sucked but dropped off quick and is now at an amazing sound. Def not the loudest but easily the best sounding. (Stock dp and fp)
I was looking for an exhaust that would give off the perfect amount of growl, and this was it. I love it, not too loud that it’s annoying but you definitely notice it when I pull up haha. Looks nice, overall I’m really satisfied with this purchase.
HKS has one of the best exhausts for the Civic.
Gave my car a much better sound than the factory exhaust. While it isn't the loudest it is a much deeper tone and sounds much better.
