✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

High-quality Injen 17-20 Honda Civic Si 1.5l Turbo (sedan Only) 3in Cat-back Stainless Steel Exhaust - Us Warehouse [QqltdA95]

$44.99 $143.99 -69%

Injen 17-20 Honda Civic Si 1.5L Turbo Exhaust The Injen 17-20 Honda Civic Si 1.5L Turbo Exhaust is a high-performance upgrade designed to breathe new life into your vehicle. Engineered by the experts at Injen Technology, this 3-inch Cat-Back Stainles

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

High-quality Injen 17-20 Honda Civic Si 1.5l Turbo (sedan Only) 3in Cat-back Stainless Steel Exhaust - Us Warehouse [QqltdA95]

Injen 17-20 Honda Civic Si 1.5L Turbo Exhaust

The Injen 17-20 Honda Civic Si 1.5L Turbo Exhaust is a high-performance upgrade designed to breathe new life into your vehicle. Engineered by the experts at Injen Technology, this 3-inch Cat-Back Stainless Steel Exhaust is crafted to deliver an aggressive sound and massive power gains. With its mandrel-bent stainless steel tubing, this exhaust system ensures smooth, unrestricted airflow for enhanced performance and fuel efficiency.

Technical Excellence

This Injen exhaust system stands out for its precision engineering and attention to detail. The mandrel-bending process guarantees the tubing maintains its shape throughout, providing optimal performance. Each component, from the Investment cast flanges to the custom hangers, is 100% TIG welded for durability and includes all necessary tubing, mufflers, and hardware for a hassle-free installation. This system is a testament to Injen's commitment to quality, handcrafted in the USA in Pomona, CA.

Performance and Everyday Benefits

This Injen exhaust system is more than just a performance upgrade; it's a statement piece that transforms your Civic Si. With an aggressive sound and significant power boost, you'll enjoy a thrilling driving experience every time you hit the road. The enhanced airflow not only increases your vehicle's power but also contributes to improved throttle response and acceleration. Whether you're a daily driver or a weekend enthusiast, this exhaust system is perfect for those looking to make a bold statement and enjoy the benefits of enhanced performance.

What Our Customers Say

January 28, 2026

Absolutely no complaints!

A great product. And a very, very, very, very great value.

- Seren P..

January 28, 2026

Absolutely no complaints!

Very impressed with the very, very sturdy build.

- Gwilym I..

January 28, 2026

Absolutely no complaints!

This is a very solid and a very, very clever tool.

- Luned T..

Write a Review

You Might Also Like

Discover more great products from our collection.

Nessa Bar Table

Nessa Bar Table

(706)
$37.99 $121.99 -69%
Beckman 340377

Beckman 340377

(187)
$20.99 $67.99 -69%
WDGR3-12-660

WDGR3-12-660

(245)
$23.99 $76.99 -69%
C25DNA2401W

C25DNA2401W

(981)
$68.99 $220.99 -69%
Ring

Ring "Sofia"

(733)
$75.99 $243.99 -69%
2024 MILWAUKEE 2967-20

2024 MILWAUKEE 2967-20

(332)
$51.99 $166.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY