Brey Krause R-9221 Passenger Seat Side Mount Adapter - BMW E46/E85/E86, Large Width Color_Flat Black while the 4-mounting points provide

while the 4-mounting points provide a wide range of fitment options

When using the Top Forced Air Induction on your Bell BR-1 Helmet

this is the answer for you

A one-piece seat with anti-sub strap pass-through and Brey Krause R-907x Side-Mount Brackets are required to use this product

Arai Tear-offs for the GP/SK-5 line of helmets offer a thick (10 mil

Brey Krause R-9221 Passenger Seat Side Mount Adapter - BMW E46/E85/E86, Large Width Color_Flat Black while the 4-mounting points provideThe Brey Krause R 9221 Seat Mount is an innovative solution that attaches aftermarket racing seats directly to BMW OEM power or manual seat sliding mechanisms. By using this side mount, the racing seat can be bolted directly to the existing passenger side seat slider hardware on any BMW E46 3 Series model (including the M3) or BMW Z4 (E85 E86). Utilizing the factory sliders not only allows for a significantly greater adjustment range, but they are