Finishing Lines - Honda/Acura Clutch Master Cylinder Adapter - Black EditionHonda Acura Billet Clutch Master Cylinder Adapters allow you to use an aftermarket master cylinder such as Wilwood, Tilton, etc in place of the factory clutch master cylinder. This plate and hardware kit bolts to the factory clutch master cylinder holes in the firewall and has a common two bolt mounting pattern at 12 o'clock and 6 o'clock positions as commonly used with aftermarket master cylinders. Pictured with Wilwood Compact Master Cylinder