J's Racing Street Version (Type S) Rear Diffuser for CRZ

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  • Regular price $632.99


In the 2004 Super Taikyu racing series, over 80% of S2000s competing in Class 4 utilized the J's Racing Aero System. From the initial design phase, to constant development from the data gathered at each race the single primary objective has been maintained - to win races. 

Cooling is improved, downforce added and lift reduced by each component within the Aero System. In racing series where aerodynamic enhancements are limited, each individual component must be absolutely maximized in it's aerodynamic qualities. The J's Racing Aero System optimizes the placement of each duct, every angle of the bumpers and side steps to attain this goal.  

The J's Racing Street Version Rear Diffuser is essentially a half bumper, which fits over the original bumper - the built in diffuser streamlines undercarriage airflow while sealing off the area above it, reducing parachute effect of air trapped within the inside of the rear bumper.