We have a brake master cylinder with an oversized bore that has 14%
more flow. It is a recommended upgrade to provide a firmer pedal when using our Big Brake kit. This is a great solution to a softer pedal that may appear once you have had the Big Brake Kit. 2007-2008 and 2011 JKs have a greater need and we highly recommend this cylinder for those applications.
HD Master Cylinder | TeraFlex Suspensions