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For those considering installing the Sparco EVO II US, there is a thread in the Autocross section that utilized one of our bracket systems. It was in a C5, and the C6 would have even more room and be easier.
The picture below shows a bracket without the seat. You can see the slots in the side mounts. After you position your seat in the car, pull the seat, remove it from the brackets and add some holes for grade 8 bolts at the end of the slots. Two holes at the front end of slots and two holes at the rear end of slots is good if possible.
Sparco EVO II US Install
