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  • Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan (SES1581TT)
  • Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan (SES1581TT)
  • Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan (SES1581TT)
  • Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan (SES1581TT)
  • Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan (SES1581TT)
  • Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan (SES1581TT)

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    Injen

    Injen Performance Exhaust System | 2017-2018 Honda Civic Si Sedan

    PART# INJ SES1581TT
    We Price Match!

    Contact us to ensure you're getting the right part for your car at the absolute best pricing on earth!

    Email - sales@maperformance.com
    Phone 1(888)627-3736



    $ 893.90   $ 940.95
    Cyber Week Savings 5% ($ 47.05)

    Built To Order Free delivery by , to your door when ordered within hrs and mins
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    17-18 Honda Civic Si Sedan Performance Exhaust System by Injen

    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

    Features

    • Direct fit for 2017-2018 Honda Civic Si L4-1.5L Turbo (Sedan Only)
    • Dyno Proven gains of up to 11 hp and 10 lb-ft. of torque
    • Stainless Steel Investment Cast Flanges For a Fast and Easy Install
    • Hand Crafted and Tig Welded to Perfection for Strength and Durability
    • Unique Design Increases Exhaust Velocity (Depending on the Application)
    • 304 SS Mandrel-Bent Tubing
    • Dual 4.0" Titanium Tips
    • Premium Stainless Steel Hardware and Hangers (Depending on the Application)
    • Designed and Made in Pomona, CA

    Please Note: Does not fit Coupe and Hatchback models

    Applications

    • 2017 - 2018 Honda Civic Si Sedan

    What's In The Box?

    • 1 - Injen Exhaust System
    • Gaskets, Hangers & Hardware

    References

    Warranty

    • Injen Technology offers a one-year warranty to the original purchaser against defects in material and workmanship on all their exhaust systems.

    17-18 Honda Civic Si Sedan Performance Exhaust System by Injen

    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

    Features

    • Direct fit for 2017-2018 Honda Civic Si L4-1.5L Turbo (Sedan Only)
    • Dyno Proven gains of up to 11 hp and 10 lb-ft. of torque
    • Stainless Steel Investment Cast Flanges For a Fast and Easy Install
    • Hand Crafted and Tig Welded to Perfection for Strength and Durability
    • Unique Design Increases Exhaust Velocity (Depending on the Application)
    • 304 SS Mandrel-Bent Tubing
    • Dual 4.0" Titanium Tips
    • Premium Stainless Steel Hardware and Hangers (Depending on the Application)
    • Designed and Made in Pomona, CA

    Please Note: Does not fit Coupe and Hatchback models

    Applications

    • 2017 - 2018 Honda Civic Si Sedan

    What's In The Box?

    • 1 - Injen Exhaust System
    • Gaskets, Hangers & Hardware

    References

    Warranty

    • Injen Technology offers a one-year warranty to the original purchaser against defects in material and workmanship on all their exhaust systems.

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    MAP Limited Lifetime Warranty

    1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

    2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

    3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

    4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

    For warranty evaluation please create a support ticket via this form here.

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