An OMP direct fit subframe for the BMW M3 E30. Part number HC772.
The same part number as our E30 frame, which is correct: the M3 shares the E30 floor and the seat mounting with the rest of the range. We list it separately so M3 owners find a page naming their car.
An E30 M3 is a homologation special
Built so BMW could go Group A touring car racing, with the S14 four cylinder rather than the six everybody expected, and a shell with widened arches and a different rear screen angle. Around 18,000 were made.
Values are now serious and buyers look closely at what has been changed. The frame bolts to the factory mounting points so nothing is cut, and the original seats come out whole. If the car has the M Technic sports seats, store them and their fixings somewhere dry and label them.
The floor check is not optional
E30s rust in the floors, the jacking points and the seams round the seat mounting. Get the carpet up and look properly before you spend anything.
Side mounts and the seat go on top. Drilled for both bolt patterns, so OMP, Sparco and Corbeau shells fit alongside Recaro.
Have you written anything about this exact product?
Yes, we have covered this exact product: Top 5 reclining seat choices for your BMW M3 (E30), including our fitting guide. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will this fit my car?
This frame is made for the BMW M3 E30 (E30). Chassis code and years matter more than the badge, as floor pans change between generations, so if your car sits near a changeover year, send us the registration and we will confirm before you order.
Which seats does it take?
It takes seats drilled 345mm x 271mm (the Sparco and OMP seat pattern) and 405mm x 290mm (the Recaro seat pattern). If your seat is not listed, tell us what you run and we will confirm the fit.
Do I keep fore-and-aft adjustment?
Only with a sliding runner between the frame and the seat, which is a separate part on OMP frames. If more than one person drives the car, budget for the runner. Our guide to sliding runners explains the options and widths.
Base mount or side mount, and does it matter?
This is a base-mount frame: the seat bolts down through its base, the simpler stack that suits seats with a flat bottom and keeps the install low-fuss. Our guide on base mount versus side mount explains the whole fitting stack.
Is this for the driver or passenger side?
Both sides are available on this listing, pick driver or passenger side at the point of order (sides listed are for right-hand-drive cars). Left-hand-drive car? Ask us, as the sides swap over and availability varies by model.