I was thinking of buying an 87-88 635csi 5spd. I was wondering where can I buy suspension mods like sway bars, shocks, springs, etc. Thanks in advance
Shark Upgrades I love having a 635 in the fleet! I can't recommend it enough. Turner Motor Sport still has suspension upgrades still available. If you contact Dinan directly, they may have some items on the back shelf waaaaay up on the top left that are shark friendly. Some other upgrades can come from OEM parts from other series like 750 brakes and such. Get it, play with it and enjoy
Everything underneath the 635 is straightforward E28 stuff. You can find it faster and probably cheaper by hanging around in MyE28.com. The 630 and 633 are E12-based. Still, a lot of E12 guys hang out there as well.