
The Sparco seat base that fits BMW E36 including M3 models offers a mounting base designed to work on both left and right sides. Specified for European-market fitment and noted as not for USDM when indicated, it provides the interface to attach an aftermarket seat to the vehicle’s existing mounting points. It’s sold as the base component and may exclude hardware.
Sparco Base BMW E36 Incl M3 (Works on both L & R Side) (European Market FItment Only - Not for USDM)