To improve rear braking on a 2002 we recommend either our rear disc conversion kit or our E21 320i 250mm drum kit. The advantage of the rear disc kit is that the brakes will not require periodic adjustments. Otherwise, either kit will work quite well when paired with our vented front brake kit.

We recommend installing an E12 master cylinder if you are installing a vented brake upgrade and rear disc kit. The E12 unit pushes more fluid to the larger front calipers and rear calipers and does not have a residual valve like the tii master cylinder. The ATE master cylinder kit includes 2 new upper grommets.

*This pricing is based on a core exchange policy. Select no core charge if you are sending your E21 axle flanges in advance. If you are going to send you axle flanges later, select the core charge option as it is refundable.

**Note: This kit fits cars with 14” or large wheels.

This 250mm rear brake upgrade kit, when used with our vented rotor front upgrades gives a very nice brake balance right out of the box. It offers a substantial increase in braking over the stock 230mm drums. Includes good used E21 backing plates (powder-coated semi-gloss black), and new drums, cylinders, shoes, springs, and all brake hardware. This is a simple bolt-on upgrade. you will need to trim the parking brake cable tube by approximately 1 cm where it exists the body to allow for proper parking brake lever angle when activated.

We recommend installing a 2002tii master cylinder if you are installing a vented brake upgrade and rear drum kit. The Tii unit pushes more fluid to the larger front calipers and rear wheel cylinders. The ATE master cylinder kit includes 2 new upper grommets.