Chase Bays s product is perfect for those looking to upgrade to a Wilwood 0.625 (5 8) or 0.75 (3 4) Clutch Master Cylinder on their Honda Civic or Acura Integra without cutting or drilling the firewall. Many transmission swaps need a larger bore clutch master cylinder, and since there s no larger EG EK DC option, this is the best solution. It looks much better than the stock Honda cylinder and matches the Chase Bays Brake Booster Eliminator. Choose either a Billet Chase Bays Reservoir or a Clutch Feed Adapter hose to share fluid with the brake reservoir, similar to BMW, Mazda, and Mitsubishi setups. The black powder-coated plate is crafted from 0.125 (3.17mm) steel, with mounting studs pressed and welded in, and uses the same M8x1.25 thread type as stock. Note, this doesn t fit with a stock clutch line, but the Chase Bays Clutch Line with a Banjo connection works perfectly. Use the included Banjo Bolt when adding the Master Cylinder, as the thread pitch differs from the stock clutch MC and the Wilwood MC.