2017-2020 Honda Civic Si Cat-Back Exhaust System S-Type Part # 140777

Tips: Dual Round Rolled Angle-Cut Intercooled

Fits these Vehicles:

2017-2020 Honda Civic Si 1.5L 4 Cyl. Turbo Manual Transmission Front Wheel Drive 2 Door Coupe.

Price : $1,358.99
Buy from Borla (USA credit cards only):
International customers contact us for shipping quote.

System features 4.25" polished T-304 stainless steel tips. BORLA® Cat-Back™ and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere.

Each system is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit.

Best of all, BORLA® stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning)


This product in the physical form it is sold does not present a hazard. However, operations including, but not limited to welding, brazing, or thermal cutting can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium and Lead which are known to the State Of California to cause cancer, birth defects and other reproductive harm. For more information go to

View All

Available for this vehicle

Technical Specs
Pipe Diameter Tip Size Tip Exit
2.75" into muffler dual 2.25" out 4.25" Dual Center Rear Exit
Installation Instructions Shipping Info
System Weight Boxed Weight Box Size
25.7 35 61 x 13 x 16