031593B: Rear subframe - rear bush

This is the rear bush of the rear subframe mount, in polyurethane.

Rubber in this position lets the back of the subframe lift under load. Rear camber and toe move while you are cornering, which is why the car feels vague at the limit.

80 ShA polyurethane — the red street compound. Firmer and far longer-lived than the factory rubber, but soft enough that the car stays civil on a bad road. This is the grade for a daily driver.

Polyurethane keeps the geometry where the alignment rack left it — the rear stays predictable all the way to the limit.

Every StrongFlex product ships with the correct grease for fitting.

• 1x 031593B Rear subframe - rear bush, 80 ShA
• Grease for fitting

Fits:

· BMW 1 I (04-13) E81 / E82 / E87 / E88 rwd / xi / xd
· BMW 1 II (11-19) F20 / F21 RWD / XDRIVE
· BMW 2 I (13-21) F22 / F23 RWD / XDRIVE
· BMW 3 V (04-13) E90 / E91 / E92 / E93 rwd / xi / xd
· BMW 3 VI (13-20) F30 / F31 / F34 RWD / XDRIVE
· BMW 4 I (13-20) F32 / F33 / F36 RWD / XDRIVE
· BMW X1 I (09-15 E84 RWD / XDRIVE
Replaces BMW parts 33316768645, 33316792510. A car takes 2.

031593A is the same bush in 90 ShA yellow — the SPORT grade for a lowered, tracked or drifted car. Same fitment, same part. Supplied in red. Black is available on request — same compound, same hardness.