Harry Sandhu - If it's the rear you might have brake bias issues. Especially true if you have wilwoods in front. Which kit do you have ? 1 hr · Edited · Like Evan Blittner The old kit Matt's Garage put together. 335mm two piece rotor 4 piston caliper. 1 hr · Like Harry Sandhu - Yeah we used the same caliper on a race car a while back and had bias issues. We then ended up installing the wilwood rear brake setup and had to install a brake bias controller to get it sorted out. Alternately you can adjust bias by using a aggressive pad up front vs the rear. Unfortunately I don't remember what we did as far as pads were concerned.