APR Performance Carbon Fiber Rear Diffuser - Honda Civic Type R FL5 2023+ Honda Civic Si The kit also includes 3x

The kit also includes 3x lay-flat cable ties to aid in affixing the collar to your shift boot

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Full-length ride height adjustment system

which already have openings for the tips

Hondata is the world leader in tuning Honda  engines and have many world records to prove this

APR Performance Carbon Fiber Rear Diffuser - Honda Civic Type R FL5 2023+ Honda Civic Si The kit also includes 3xFITS: 11th Gen Honda Civic Type R Note: Rear Bumper Skirt shown in some Photos is Sold Separately. Diffusers work in conjunction with other aerodynamic components of a car to help produce downforce. Because a car displaces air as it moves forward, the air molecules in the rear of the car get disrupted causing a vacuum of low pressure air. To help channel the high speed air flow coming from underneath the car, diffusers redirects the high speed air