The difference in AU1 to AU2 (and BA for that matter) rear brakes is 1/5 of bugger all. The swept area of the pad is pretty much the same, and they are all only single piston callipers on the rear.
The front brakes are a different story; the AU1 brakes are single piston callipers, acting on smaller discs, while the AU2s are twin piston callipers acting on slightly larger (around 1/2" diameter, I think) discs. It's actually the twin pistons combined with the larger pad swept area that makes the upgrade better than standard AU1. You could upgrade the master cylinder while you're at it, vut most don't and there doesn't seem to be much difference in pedal feel/braking effort from that point of view - just a fair increase in braking/clamping pressure, and therefore faster braking.
__________________
-----------------------------------------------------------------
The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb)
1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs).
Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s
Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings
FPV 335 build stats: <click here>
Ford Performance Club ACT
|