Originally Posted by
cornercarver
I've been looking for a STB which ties the strut towers to the firewall. I had one on my Mustang. It was reportedly the best design because it triangulated the strut towers with the firewall which acts like a shear plane. I think it's harder to do on the E46 because the cabin air filter is in the way, at a minimum.
The 135 is designed like this. We added a Dinan strut bar to triangulate it...
Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
H&R sport springs, UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers