CP Thunder

Anyone running this kit with the four piston calipers both front and rear on a C5? Any issues with ABS or master cylinder? Pedal firmness?

Am curious.....thanks.

RX-Ben

There was just a thread about this. Don't do it unless you get properly sized rear calipers (ie, w/correctly sized pistons).

Joy of 6

I've got the kit on my fronts only and am very happy with it. No abs issues and no fade Pedal is always up, but does go down a little as the pads wear out

CP Thunder

We have the kit on the front already and run stock calipers/Z51 rotors on the rear. Would love to move the 12.81 kit to the rear and run the 14 inch kit on the front......only with a M/C upgrade tho am sure. Will have to see what happens in the T1/T2 rules after the Runoffs.

We ran the Wilwood SL6R kit front and moved the stock two piston calipers to the rear. They worked just fine.......just had a soft pedal. Not ideal. Probably would be fine with a larger M/C.

dvandentop

ritter told me it would be best to run a bigger master such as the rippie etc... on my c6z with i was doing to run the ap 6 pistons up front and the harbar 4 pistons in back

dfinke23

Our engineers worked on the proper master size to match the requirements of the DTM front and rear for Riley's set, and the Rippie unit fit pretty well.
It worked pretty well too - the balance is different when going from hoosiers to michelins, but easily adjustable.
So far, so good for the stock ABS.