So far, I have only owned FC's with 4-piston calipers. A friend recently purchased an S5 NA with 1-piston brakes, and I was wondering if the caliper mounts are the same, as I think it'd be a great idea for him to upgrade to the larger front brakes. If the caliper mounts are different, what is necessary to convert to 4-pots?

Sounds like it would work, we did the same thing with my Monte Carlo stock car, upgraded to Camaro big brakes...kinda the same situation.

The only thing you'll need is the hard line that goes from the caliper. Everything else is the same.

Thanks a lot

yep theres a little bit of hard line on the caliper, or custom longer brake lines



rotors are the same on all the s5's



in the REAR on the single piston cars, they have a NON vented rotor and i think different caliper brackets. it doesnt really seem like you NEED to do the rears, but its there if you wanna. the s5 single piston cars REAR brakes are like the 4 lug s4 brakes, but the rotors are drilled for 5 lugs.

He'll also need the full rear-hub assembly as it is different for the vented/non vented if he wants to swap the rears. They are off-set slightly to accommodate for the thickness of the rotor.