Genuine BMW B58 F30 F32 M Performance Silencer and Muffler Exhaust System for 340i, 340ix, 440i, 440ix
Upgrade your BMW 340i or 440i with the Genuine BMW M Performance Exhaust. This rear silencer and muffler system is the OEM exhaust upgrade engineered specifically for B58-powered F30, F31, F32, F33 and F36 models. Expect a richer, deeper straight-six tone, enhanced exhaust flow and a premium finish with M logo tailpipes. If you are searching for BMW 340i exhaust, BMW 440i exhaust, B58 exhaust, F30 exhaust upgrade or F32 M Performance Exhaust, this is the authentic BMW solution that delivers sound, quality and reliability.
Why choose the Genuine BMW M Performance Exhaust for your 340i or 440i
- Optimised acoustics for the iconic BMW straight-six character with a more engaging, sporty sound
- Reduced back pressure to improve exhaust flow and performance potential while maintaining long-distance comfort
- High quality stainless steel construction for durability and corrosion resistance
- Twin tailpipes with M logo, available in chrome or carbon finishers
- Developed using advanced CAD and FEM technologies for an optimal, direct-fit OEM installation
- Genuine BMW part, designed for B58 340i and 440i platforms, including xDrive
We have fitted this system for customers and on our own builds. Feedback is consistently positive: a noticeable upgrade in tone without unwanted drone, excellent fit and finish, and the peace of mind that comes with a genuine BMW M Performance Exhaust. If you want the best BMW 340i exhaust upgrade or BMW 440i exhaust upgrade, this is the backbox and rear silencer to choose.
Compatibility
- 3 Series F30 F31 340i and 340ix Saloon, 2014+
- 4 Series F32 F33 F36 440i and 440ix Coupé, 2014+
To retain your BMW warranty, installation applies to automatic transmission vehicles only.
Tailpipe options
- Chrome tailpipes with M logo
- Carbon tailpipes with M logo
Part numbers
- 18302406953 — Silencer and Muffler System
- 18302354364 — Chrome Tailpipe
- 18302355889 — Carbon Tailpipe
Compatibility check before dispatch
We verify fitment prior to shipping to ensure you receive the correct BMW 340i or 440i exhaust. Provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility for your F30, F31, F32, F33 or F36 B58 model.
Fitting service
Professional installation available at Nforcd in Warwickshire. Request a fitting quote by emailing Sales@nforcd.com. As BMW specialists, we ensure an OEM-quality fit and finish for your B58 M Performance Exhaust upgrade.
Manufactured by
BMW — Genuine BMW M Performance Parts.
Warranty
Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a compatible VIN is provided at checkout.
Common search terms
BMW 340i M Performance Exhaust, BMW 440i M Performance Exhaust, B58 M Performance Exhaust, BMW F30 exhaust, BMW F32 exhaust, 340i exhaust upgrade, 440i exhaust upgrade, OEM BMW muffler, BMW rear silencer, BMW 340i backbox, BMW 440i backbox, xDrive exhaust, chrome exhaust tips, carbon exhaust tips.