[larryn]

Originally Posted by arrutled

Brake upgrade time! get some stop techs!

OK, did some research. There is a means to replace the pistons.. just not from BMW or Brembo. Stoptech has replacement parts that fir the 135i calipers. I emailed Stoptech, and got a replay back from the semi-famous Dave Zeckhausen, himself...

If ya wanna know what he had to say:

Originally Posted by Dave Zeckhausen

Some BMW racers have replaced the destroyed metal/ceramic pistons in their 135i Brembo 6-piston calipers with StopTech aluminum pistons that are typically used in the ST-60 6-piston StopTech calipers.

To rebuild your calipers, you will need two each of the following boot and seal kits:

28mm: http://store.zeckhausen.com/catalog/...oducts_id=6533
32mm: http://store.zeckhausen.com/catalog/...oducts_id=6535
36mm: http://store.zeckhausen.com/catalog/...oducts_id=6537

And four each of the following "short" (29.5mm long) caliper pistons:

28mm: http://store.zeckhausen.com/catalog/...oducts_id=2916
32mm: http://store.zeckhausen.com/catalog/...oducts_id=2919
36mm: http://store.zeckhausen.com/catalog/...oducts_id=2921

Add to that list.. F&R pads, Front Rotors, and new brake sensors. Sum it up, and I was well over $1400, to just rebuild the fronts for what I have now. **cough**

Well now, what have we here?

Wait.. What? I can rebuild my entire F&R braking system.. New slotted/drilled rotors, pads, replacement F&R calipers, and brake sensors.. for $500+ less than just rebuilding my fronts? Well, that''s what I did. Awaiting delivery.