Genuine BMW 340i & 440i Carbon M Performance Power and Sound Kit F3x. Compatible with F30/F31/F32/F33/F36 340i & 440i models. Please provide us with your registration number or chassis number to check compatibility. We recommend this kit is fitted by a BMW retailer, there are updates to the software that require to be carried out. 1x Power & Sound Kit (11122444531). 2x Carbon Fibre Tail pipe Trims (18302355889). 1x M Performance software update. 1x M Performance plaque for engine compartment. 1x M Performance sticker set for side sill. The BMW M Performance Power and Sound Kit delivers an excellent power boost (265 kW) to the standard engine in the 340i/440i. The new, upgraded engine update, coupled with the perfectly tuned silencer with flap system make the 340i/440i an uncompromising sporting experience for all the senses. Improved acceleration, impressive torque and a faster response are the improvements that drivers will feel immediately after installation. The acceleration values (from 0 to 100 km/h) are improved by 0.2 seconds. Inspirational driving performance, sporty dynamic tuning. The silencer with flap system means performance can be boosted to 265 kW/500 Nm. This boost is awe-inspiring and delivers exceptional performance. The excellent traction, even at high speeds, also allows powerful acceleration and creates a sporty and extremely agile driving experience. Maximum 265 kW at 5500 rpm. Cars with manual transmission can only achieve a torque of 480 Nm as various components have to be protected. Comparable consumption despite higher performance: The fuel consumption and emissions levels in the ECE driving cycle correspond to those of the standard engine, despite the significantly greater performance. The sport display in the iDrive monitor is adapted to higher performance and the higher torque. The Power and Sound Kit ensures a matching engine and exhaust system sound, intensifying the BMW’s sporty sound characteristics. The Drive Experience button allows the selection of multiple modes, which influence the exhaust system’s performance. Sport and Sport+ Mode: Maximum emotional sound, very sporty, very loud, maximum performance. Comfort and Eco-Pro Mode: Sporty sound, significantly sportier and more emotional than the standard system, but with residual comfort for uncompromising everyday use. The silencer system has been developed using the latest CAD and FEM technology. This ensures an optimum fit and superlative manufacturing quality. It is your responsibility to make sure it fits your vehicle. If goods are faulty, we will replace the item free of charge, if notified within seven days of the end of the sale. Electric items are not returnable if they have been used. We are a main BMW / MINI retail centre so can meet all enquiries. We also have large workshops if you need something fitted.