Dual Master Cylinder Assembly With Bias Adjust Bar - Our Dual Master Cylinder System Features Two Tilton 75 Series Brake Master Cylinders - Sized: 15.88mm Front / 17.78mm Rear1977-1989 Porsche 911 / 930 Turbo - Power Brake ModelsAnother Patrick Motorsports USA Exclusive! - Sold As A Kit - 1 Kit Per CarNOTE: Shown with additional fluid reservoir for G50 hydraulic system feed (NOT INCLUDED- SOLD SEPARATE) NOTE: Use With Our Low Profile Dual Master Cylinder Brake Line Kit - A Great Solution For The Limited Space Due To The Factory Fresh-Air System # BRA 911 355 DBMCL LK PMS (Sold Separate) NOTE: Early 1965-1976 Porsche 911 Models Require Our Late 911 Power Brake Master Cylinder Retrofit Mount Kit # BRA 930 355 027 00 RM PMSNote: Price Includes $275.00 Core Charge For Original Equipment Brake Master Bearing Bracket And Reverse Lever Assembly - Part Numbers: 911 355 381 01 And 911 355 083 03Recommended For Off-Road / Motorsport Use OnlyAlternate Part Numbers: BRA 911 355 DBMCL PMS / BRA-911-355-DBMCL-PMS / BRA.911.355.DBMCL.PMS / BRA911355DBMCLPMS 04/29/2026