Wilwood's new billet aluminum Master Cylinder Firewall Mounting Kit, part number 250-13167. This mounting kit is specifically designed to work in conjunction with Wilwood’s Forward Mount Brake and Clutch Pedal Assembly and Flange Mounted Compact Remote Master Cylinders.The kit allows precision mounting of the pedal and master cylinders to the firewall, and leaves the engine compartment with a high-tech pro-finish look. The mounting plates recess the master cylinder mounting surface by .25â€, which allows more clearance in the engine compartment. Both the engine compartment faceplate and interior side mounting plate are media burnished billet aluminum. The kit is designed to accept a firewall material thickness range of .040†- .080â€, and requires a minimum flat area the size of the 4†x 8†faceplate. Also provided is all mounting hardware, including attractive, corrosion resistant stainless steel 12 point fasteners, and detailed installation instructions.