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2005-14 California Special/GT500 Rear Diffuser Race

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Our s197 Race Diffuser fits California Special and GT500 bumpers.  Like the street version, this diffuser incorporates smooth curves on the bottom of the diffuser to help keep the air attached and provide increased downforce.  Unlike our street version the Race version extends further under the car and it requires deleting (or relocating) the evaporative emissions components under the trunk.  Made completely from ACM this rear diffuser matches our other aero products perfectly.  As with all of our diffusers, in the event of damage the Fins are easily replaceable with screws going into the top of the fins giving our diffusers a very clean appearance. Purchase includes all mounting hardware.  Installation of this diffuser does require CUTTING out the factory diffuser.