[sambo]

Thanks Ben. Yes, OEM discs and I have a race spec TRW pad for track work.

There's a bit of history behind these calipers. Race Brakes fitted them to the rear of another Cobra several years ago (not a Harrison) and they worked well with VT-VZ front brakes. That owner has since done a big brake upgrade so we thought we'd stick with a known formula.

Howard at Race Brakes said he'd never pair VZ/R33 brakes on a Cobra - way underpowered at the rear and also very different weight distribution to a Commodore. That sealed it for me.