subframes

[bmws50b30]

are the E30 M3 and regular E30 subframes the same? i'm asking because i want to use the e30M subframe for my 5 lug swap and they are already reinforced. thanks

[FredK]

Nearly. The exhaust hangers are different, but that is it.

[bmws50b30]

so the fronts are the same and i'll just have to relocate the exhaust hangers on the rear. Thanks.

[Aptyp]

how are the ones you're putting on reinforced?

Exhaust hanger on the rear subframe is a bolt on, and there's place for it on all e30 subframes.

[FredK]

Now that I think about it, I believe he is talking about the front subframe. The front subframe ears can be reinforced to avoid breakage on aggressively driven cars.

[bmws50b30]

here are pics of the front reinforced. it's on the engine mount holes. i hope the holes will line up as i have a swapped car.

e30 m3 front subframe




i want to get my 5 lug done before winter :D. still need to clean and paint these. sway bar mounts are reinforced as well

[Aptyp]

no idea, you're on your own there kid. Those welds are rough and holes look not very round. If you have any fitment issues, that reinforcement will be the issue.