Suitable for BMW G80 / G82

The premium CGW exhaust system is professionally custom-engineered and tailor-built exclusively for the BMW M3 (G80) sedan and BMW M4 (G82) coupe, perfectly matching the original vehicle’s performance characteristics, chassis layout, and factory assembly standards. Developed specifically for enthusiasts pursuing upgraded exhaust sound, improved power output, and personalized racing-style styling, this complete exhaust lineup covers full-stage replacement parts with diverse modular combinations. It balances aggressive track-oriented performance, daily driving practicality, and seamless factory compatibility, making it an ideal upgrade solution for both street daily use and professional track modification for the latest-generation S58-powered BMW performance models.



To cater to different modification styles, emission requirements, and performance tuning needs, CGW provides a comprehensive range of interchangeable downpipe options for the G80 and G82 chassis. Customers can choose a pure straight racing downpipe for maximum exhaust flow and unrestricted track performance, which completely removes catalytic restrictions for the most aggressive exhaust tone and optimal power release. For users who need to balance street legality, emission compliance, and high-flow performance, we offer graded high-flow catalytic downpipes in 100-cell, 200-cell, and 300-cell specifications. These high-performance cat downpipes effectively reduce exhaust backpressure compared to stock components while retaining basic filtering functions, delivering a noticeable improvement in throttle response, engine breathability, and overall power efficiency without sacrificing daily practicality.

In terms of mid-pipe configurations, CGW offers a rich selection of specialized options to meet different sound tone preferences and modification demands. The product lineup includes a GPF-delete OEM-style mid-section that maintains factory original piping routing for ultra-simple plug-and-play replacement. Additionally, we provide two professional equal-length mid-pipe upgrades: the OPF-delete equal-length mid pipe with X-pipe and the OPF-delete equal-length Z-pipe mid pipe. Both equal-length designs eliminate unbalanced exhaust gas pulsation, deliver smoother exhaust flow, and produce a deeper, more uniform resonant exhaust note with eliminated drone. For hardcore track enthusiasts pursuing extreme airflow and uncompromising racing acoustics, the 4-inch single large-bore track mid pipe is available, featuring oversized piping diameter to maximize exhaust gas velocity and minimize flow resistance for all-out track performance.

For cat-back exhaust sections, CGW supports three mainstream versions to cover all usage scenarios. The track valveless version delivers a loud, pure racing exhaust sound with consistent aggressive tone for track days and show car setups. The OEM valved version retains the original factory valve control logic, enabling quiet and comfortable cruising mode for daily commuting and open-valve sport mode for passionate driving, perfectly balancing dual demands of comfort and performance. The exclusive MP Gatling-style exhaust adopts a unique barrel-shaped tailpipe design, adding a fierce and distinctive visual racing aesthetic while optimizing exhaust outlet flow efficiency.



This CGW exhaust series adopts a precise 1:1 OEM segmented structure consistent with the original factory design. The modular segmented structure allows users to replace and upgrade the downpipe and cat-back sections independently according to personal needs and budget. There is no need to replace the entire exhaust system in one go, supporting staged modification and flexible later-stage upgrades, which greatly improves the cost performance and scalability of the modification solution.

In terms of personalized customization and craftsmanship details, CGW supports custom laser-engraved brand logos on exhaust pipes, presenting exquisite high-end modification textures and exclusive vehicle styling. Two premium industrial-grade materials are optional for the entire exhaust system: durable 304 stainless steel with excellent corrosion resistance, high temperature resistance, and long service life, and lightweight titanium alloy that effectively reduces overall vehicle weight, improves vehicle dynamic response, and delivers a more premium racing-grade texture. For downpipe protection and heat dissipation optimization, users can choose full-layer heat insulation wrapping to isolate high-temperature heat radiation and reduce engine bay ambient temperature, or upgrade to high-temperature resistant long-lasting ceramic thermal coating, which features stronger oxidation resistance, longer service life, and better heat insulation stability under extreme high-temperature working conditions.
The valve system of the CGW valved exhaust version maintains full compatibility with the original factory exhaust valve actuator motor. It supports true plug-and-play installation without any wire cutting, program coding, or structural modification, perfectly retaining the original vehicle’s driving mode linkage and automatic valve switching functions.

Every CGW exhaust product undergoes strict full-vehicle 3D scanning modeling and CNC dedicated fixture positioning production processes. High-precision digital modeling completely restores the original vehicle piping layout and installation trajectory, while customized CNC fixtures ensure unified production standards and extremely low assembly tolerance and alignment deviation. Every pipe joint, hanging lug position, and bolt hole is precisely calibrated to achieve a pure bolt-on installation. No cutting, grinding, bending, or any modification to the original vehicle exhaust pipeline and body structure is required during installation, ensuring zero damage to the original car and perfect installation accuracy.



This CGW exhaust system has wide compatibility for late-model BMW M series vehicles. It fully fits the 2021 and newer BMW M3 G80 sedan, M4 G82 two-door coupe, and M4 G83 convertible body styles, covering all official factory variants including the base standard model, high-performance Competition version, and track-focused CSL edition. It is compatible with both domestic OPF-equipped emission models and overseas OPF-deleted models equipped with the iconic S58 3.0T inline-six turbocharged engine, achieving universal direct bolt-on fitment for global vehicle specifications.