BIRA system 1 is nothing like ECS system 3- Boxster calipers are much smaller, as is the A8 rotor. Taka On Dec 11, 2007 9:20 AM, LL - NY <larrycleung at gmail.com> wrote: > FWIW, my 16 x 7.5 Avus's clear ECS System 3 (993TT calipers and rotors, > custom hats) brakes, but barely (as in about 1 mm clearance). > > LL - NY >