If you're looking to boost your Honda Civic SI's performance, the AEM 21-508R Performance Cold Air Intake System is a fantastic choice. This system replaces your vehicle's restrictive factory air filter and intake housing, resulting in significant horsepower and torque gains. Designed specifically for Honda Civic SI models, this intake system has been meticulously tuned and dyno-tested to ensure optimal performance.
"The AEM 21-508R has completely changed the way my Civic performs. The throttle response is sharper, and I can feel the extra power during acceleration. Installation was straightforward, and the sound is just perfect!"
"I've tried a few intakes before, but this one stands out. The quality of the materials is top-notch, and I love that I can clean the filter instead of replacing it. Definitely worth the investment!"
"Great product! I noticed a difference in performance almost immediately. The installation instructions were clear, and the fit was perfect. Highly recommend for any Civic SI owner!"
California Air Resources Board Exempt: Yes; CARB EO: D-670-15; AEM - Metal Intake System; Red (CAS)
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