Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / Injen / New

Injen 17-20 Honda Civic Si 1.5L Turbo (Sedan Only) 3in Cat-Back Stainless Steel Exhaust

Injen · New

Injen 17-20 Honda Civic Si 1.5L Turbo (Sedan Only) 3in Cat-Back Stainless Steel Exhaust

MPN SES1581TT · Store SKU injSES1581TT

$1,294.53
IN STOCK2 ready to ship

Supplier stock checked 11/7/2026, 8:06:45 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

The Injen Technology engineers are experts when it comes to performance, PERIOD. From Cars to Trucks to Powersports, Injen has a variety of exhaust systems to choose from. All of Injen Technology Performance exhaust systems are constructed from mandrel bent stainless steel tubing Mandrel-bending ensures the tubing maintains its shapes and size throughout the entire length, providing smooth, unrestricted airflow. From the Investment cast flanges to the custom hangers, all Injen exhaust systems are 100% TIG welded and handcrafted in the USA and include all tubing, mufflers, and hardware necessary for a hassle free installation. Each system is uniquely designed to offer an aggressive sound that brings out some massive power. Like all other Injen products, the Injen exhaust systems are proudly built in Pomona, CA. Designed for specific vehicles the Injen Titanium Tip (TT) Edition gives the Super SES exhaust line its added flare. With a more aggressive burnt titanium tip finish larger diameters (where applicable) and featuring a slip fit design- the Injen SES TT edition has proven to be the next best thing since the release of the SES line. Cat-Back Exhaust System; Incl. Tubing/Mid Section Pipe w/Resonator/Dual 4 in. Titanium Tips/Hardware; HP Gains +11 HP/Torque Gains +10 ft./lbs.; 304 Stainless Steel; Polished; Performance Exhaust System, Part No. SES1581TT, 2017-2020 Honda Civic Si L4-1.5L Turbo, Sedan Only. Performance Exhaust System Cat-Back Exhaust System

Manufacturer fitment & guides

Check SES1581TT against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

Part-specific notes

  • Emissions acknowledgement required before purchase.
  • California Proposition 65: Y
More from Injen ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your build.