This EGO-X valve exhaust system for the BMW 440i G23 Cabrio and BMW 440i G26 Gran Coupe is hand-built using TIG welding and consists of absorption silencers. The pipe diameter is 3.5 inches (89 mm). Whether your vehicle has rear-wheel drive or xDrive, this system gives your BMW a distinctive sound with real character.
Technical details:
- Pipe diameter: 3.5″ (89 mm)
- Pipe material: stainless steel
- Absorption silencers: hand-built by the manufacturer
- From OPF
- TIG welded
Package contents:
- Exhaust system from OPF
- Fitting instructions
- Fitting hardware
- The original valve actuators from the existing exhaust system are reused.
Road use: The version with the Bull-X Tronic control unit has ECE approval and is permitted for road use without being entered in the vehicle documents.
Suitable for: BMW 4 II (G22/G23/G26/G82/G83).
Manufacturer’s vehicle data
- EGO-X Abgasanlage 3,5″ BMW 440i G23 Cabrio & G26 Gran Coupe (mit ECE*)
Original product name by HG Motorsport (»z.B.« = e.g.). Please check model, year and engine of your vehicle before ordering; if in doubt, contact us and we will check for you.
Approval
Only the version marked “road legal” has a European ECE / EC approval (Bull-X Tronic controller with ECE or the HJS EC catalytic converter). Versions marked “no ECE, track use only” have no approval and are not permitted for road use. If in doubt about the version, contact us and we will check for you.
Included in the price
Bull-X Tronic with ECE – road legal.

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