2017 2021 Honda Civic Si 1.5T cold air intake ETL Performance Products Injen Cold Air Intake Honda Civic Si 1.5L Turbo (17 18) Polished Bla 2017 2021 Honda Civic Si 1.5T cold air intake ETL Performance Products Injen Evolution Air Intake 2017 + Honda Civic Si Crux Motorsports. Boost up the performance of your 2017 2020 Honda Civic Si with Injens all new EVO1501 Evolution sealed cold air intake system. The EVO1501 cold air intake was designed using advanced engineering tools to offer a top quality kit that has no parallel. The EVO1501 one piece sealed housing utilizes our patent pending Twist Lock technology to securely fasten our SuperNano Web Dry air filter in place. Injen has put it all on the table to give you, the customer, the greatest intake system possible! Roto molded Housing: The one piece sealed housing utilizes the all new Injen Twist Lock System to securely attach the SuperNano Web Dry air filter in place. The Twist Lock system eliminates the use of unnecessary parts and gives you one of the simplest installations available. The EVO1501 housing also includes our Injen Clear View badge for a cleaner, more aggressive under hood appearance. Roto molded Intake Tube: The EVO1501 Evolution Cold Air Intake System uses a custom designed and dyno tuned intake tube to produce huge power gains while retaining an OE quality fit. The intake tube also includes our patented tuning process that funnels air at a precise rate past the MAF sensor. This patented tuning process ensures accurate fuel trims and aggressive power gains without the fear of check engine lights. SuperNano Web Dry Air Filter: The Injen SuperNano Web Dry air filter is included with the EVO1501 cold air intake. This filter is uniquely designed to work with the Injen Twist Lock System. Using our Twist Lock technology has allowed our technicians to use the largest filter available for this application, which enhances the air volume resulting in increased power gains while making this installation process quick and easy. Quality Hardware: From the Stainless Steel Band Clamps with an inner protective liner to the reinforced automotive grade silicone coupler, every aspect is covered for a perfect and reliable fit. Hassle Free Installation: Keep it simple! Every Injen Evolution Cold Air intake that uses our Twist Lock System has been strategically designed to utilize fewer parts and tools to provide the end user with one of the swiftest and most manageable installations available on the market today. Dyno Proven: Plain and simple, NUMBERS talk! Injen has a strong legacy of designing and thoroughly testing every product we develop and the EVO1501 clearly benefits from our dedication to performance. Our engineers put in countless hours of testing to prove that we have developed the safest, highest performing kit on the market. With 18 additional horsepower and 18 lb ft of torque, Injen is proud to say that the EVO1501 Evolution Cold Air Intake system is the very best intake system for your Civic Si that money can buy. Key Features Direct Fit for 2017 2021 Honda Civic Si L4 1. 5L Turbo Dyno Proven gains of up to 22 hp and 18 lb ft. of torque Designed to work with the stock calibration Aggressive intake growl under acceleration Durable Roto Molded Polyethylene tube and housing Injen Clear View badge for simple air filter inspection Reinforced automotive grade silicone couplers Fully serviceable Injen SuperNano Web dry air filter Replacement air filter part number X 1110 BB Twist Lock Technology* to securely integrate the air filter to the housing Stainless steel band clamps with inner protective liner Aggressive under hood appearance while maintaining an OE fit Our clear inspection badge allows you to quickly check the condition of your air filter while the red stripe enhances under hood appearances. Made in Pomona California, USA Injen Technology Limited Lifetime Warranty Note: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles. May We Suggest; Injen X Pedal PRO Black Edition Throttle Controller PT0018B