When a seat and a sub-frame come from different manufacturers, the bolt pattern does not always match. This product solves that specific problem between Corbeau seats and Sparco sub-frames, or the reverse. The Corbeau to Sparco Base Mount Adaption Bars from M2 Motorsport are a pair of steel adapter plates that bridge the two different bolt spacings.
Two bolt pattern options are available: 291mm wide and 345mm wide. Select the one that matches the spacing you are working with at the top of the page.
Corbeau use one base mount bolt pattern and Sparco use another. Where a customer has, for example, a Corbeau seat and a Sparco vehicle-specific sub-frame already fitted to their car, these bars make the combination work without buying entirely new mounting hardware. They can also be used in reverse: a Sparco seat to a Corbeau sub-frame.
Before ordering, confirm which bolt spacing your seat and sub-frame combination actually needs. The two measurements here (291mm and 345mm) refer to the bolt pitch on the adapter itself. If you are not sure which applies to your setup, send us the seat and sub-frame make and model and we will confirm.
These bars are designed for base-mount applications. If your setup uses side-mount holes on the seat rather than under-seat bolt holes, this is not the right product. For adapting a base-mounted seat to an M2 side-mount sub-frame, see the M2 to base mount adaption bars instead. Call us or use the contact page if you want to confirm fitment or check the current lead time before ordering.
