The Milltek Sport full system completely replaces the OEM exhaust system. It fits the vehicle from the engine block or turbocharger to the tailpipes of the exhaust system. This full system is equipped with a High-Flow sports catalyst designed to be freer-flowing, allowing for less restrictive gas flow and improved engine efficiency. - Full system replaces OEM exhaust from engine block or turbocharger to tailpipes - Includes High-Flow sports catalyst for improved gas flow - Designed to enhance engine efficiency Specifications: - Pipe Diameter: 63.50 - Fitting Time: 2 to 2.5 hours (including removing OE system) - Race Product: Yes - EMarked: No Kit comes with: - MSBM281: Y Piece - MSBM281 - MSBM282: Catalyst Assembly - MSBM282 - MSBM284: Centre Silencer - MSBM284 - MSBM285: Rear Silencer - MSBM285 - MSBM286: Polished OEM+ Exhaust Tip - MSBM286 - MSBM287: Aux Mounting Brackets Vehicle Compatibility: - 1987-1992 BMW 3 Series E30 M3