This product is designed to remove the primary catalyst from the exhaust system, creating a freer-flowing exhaust. This allows the engine to operate more efficiently and can increase performance. - Removes the primary catalyst for improved exhaust flow - Enables more efficient engine operation - Designed for a wide range of vehicles - Manufactured in the UK and distributed globally Specifications: - Pipe Diameter: 76.20 - Race Product: Yes Kit comes with: - MSNI118: LH Primary Catalyst Replacement Pipe - MSNI118 - MSNI119: RH Primary Catalyst Replacement Pipe - MSNI119 Vehicle Compatibility: - 2009-2015 Nissan GT-R R35