Chase Bays Clutch Master Cylinder Adapter for Toyota Chaser / Mark II / Cresta & AE86

This product is designed for those who need or want to upgrade to a Tilton 0.625" (5/8) or 0.75" (3/4 Larger Bore) Clutch Master Cylinder on their Toyota JZX90, JZX100, and AE86 chassis without cutting or drilling their firewall. Some transmission swaps require a larger bore clutch master cylinder and since there isn't a larger Toyota one you can swap in, this is the best method. Additionally, this product is much more aesthetically pleasing than the ugly Toyota cylinder, the stroke is improved so you get a more precise engagement, and matches our Brake Booster Eliminator if you have it.  The black powdercoated firewall plate is made of 0.125" (1/8 or 3.17mm) steel and has the master cylinder mounting studs pressed and welded in. It uses the same thread type as stock, which is M8x1.25. There are a few options but don't let it overwhelm, its ultimately just 3 options:1) Standard option includes just the firewall CMC adapter...you will have to supply the Master Cylinder, the AN adapters,