Manufacturer SKU: BMW.F.VSES.BR.RC BMW F-Chassis Valved Axle-Back Exhaust System – Version 2 T304 Stainless Steel with Electronic Valves & Cast Y-Pipe Overview The Version 2 Valvetronic Designs F-Chassis Valved Exhaust is our most refined system yet for the BMW F-Series lineup. Designed for maximum performance, versatility, and longevity, V2 introduces a host of improvements, including a new valve design for optimal reliability, relocated hangers, and revised muffler internals for a more docile, refined tone when valves are closed. A newly engineered cast Y-pipe maximizes exhaust flow and enhances tonal quality, delivering a more engaging and sonorous sound across the rev range. Whether paired with the OEM mid-pipe or most aftermarket mid-pipes matching factory dimensions, this system offers seamless fitment and an uncompromising sound experience. Why It Works - New Valve Design: Improved durability and responsiveness over previous versions. - Refined Closed-Valve Acoustics: Reduced volume and smoother tone for daily driving comfort. - Cast Y-Pipe Upgrade: Increases flow and improves exhaust scavenging for a richer, more balanced tone. Sound & Control - Valves Open: Deep, raw, and aggressive tone with loud pops, sharp overrun snaps, and pronounced gear-change sounds. - Valves Closed: Near-stock volume for quiet commuting or late-night driving. - Dynamic Drive Mode Integration: Fully compatible with BMW’s factory drive mode settings for instant sound control. Construction & Quality - Material: Brushed T304 stainless steel for strength and corrosion resistance. - Craftsmanship: Precision TIG welds and full mandrel bends for optimal flow. - Tips: Sleeve-style exhaust tips for perfect alignment and premium appearance. - Valve System: OEM-style electronic valves with rapid open/close function; extension harness included. Fitment (Includes xDrive models) F30: - 320i (2012–2016) - 328i (2012–2016) - 330i (2016–2018) - 335i (2012–2016) - 340i (2016–2018) F32 / F33 / F36: - 420i (2012–2017) - 428i (2012–2017) - 430i (2017–2019) - 435i (2012–2017) - 440i (2017–2019) F22: - 228i (2014–2016) - 230i (2016–2019) - M235i (2014–2016) - M240i (2017–2019) F20: - M135i (2014–2017) - M140i (2017–2019) Installation Notes - 100% reversible—return to stock at any time. - For non-m sport or 4 cyl applications, an m-sport style diffuser is necessary for dual tip fitment - B58/B46 Owners: Requires minor mid-pipe modification – Learn More - 4-Cylinder Owners: Includes adapter pipe (weld recommended). Requires 6-cylinder diffuser or diffuser modification for proper tip exit. - Non-Valve Cars: Use our Electronic Exhaust Valve Harness to enable in-car valve control. What’s Included - T304 stainless steel valved axle-back exhaust - Cast Y-pipe assembly - OEM-style electronic valves - Extension harness for factory valve integration - Sleeve-style exhaust tips - All necessary clamps and hardware Specifications - Material: Brushed T304 stainless steel - Valves: OEM-style electronic, integrated with BMW drive modes - Design: Cast Y-pipe with revised muffler internals for tonal refinement - Finish: Brushed stainless 🎧 Hear It in Action: - Sound Clip 1 - Sound Clip 2