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Injen 06-09 Civic Si Coupe & Sedan 60mm Axle-back Exhaust

$549.05

On Backorder — Expected to ship by Jun 5, 2026

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Fits 2006-2011 Honda Civic Si. This Injen axle-back exhaust improves sound and power with 60mm 304 stainless steel piping.

Key Features

  • Fits 2006-2011 Honda Civic Si Coupe and Sedan.
  • Constructed from 60mm, mandrel-bent 304 stainless steel tubing for smooth airflow.
  • Features a polished 4.0" stainless steel tip with a rolled edge for a JDM style.
  • Handcrafted and TIG welded in the USA for strength and durability.
  • Investment cast stainless steel flange allows for a fast and easy installation.
  • Dyno-proven gains of up to 5 hp and 4 lb-ft of torque.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles
  • Honda Civic 2006-2011
About this part

Product Details

This Injen axle-back exhaust system is built with 60mm, mandrel-bent 304 stainless steel tubing, ensuring a smooth, unrestricted path for exhaust gases. It's designed specifically for the 2006-2011 Honda Civic Si Coupe and Sedan, aiming to enhance both the sound and performance of your car.

The system is handcrafted and TIG welded in the USA, featuring investment cast flanges for a straightforward installation without the need for cutting or welding. You can expect a more aggressive exhaust note and dyno-proven gains of up to 5 horsepower and 4 lb-ft of torque, complementing Injen's performance intake systems for maximum power across the entire RPM range. The polished 4-inch stainless steel tip gives it a clean, JDM-inspired look.

Included with the system are all the necessary stainless steel hardware and hangers for a hassle-free setup. This axle-back exhaust is a solid option if you're looking to improve the sound, power, and appearance of your Civic Si.

Specifications

Brand
Injen
Manufacturer Part #
SES1577
UPC
843115013424

Frequently Asked Questions

Injen 06-09 Civic Si Coupe & Sedan 60mm Axle-back Exhaust

$549.05