Aftermarket Exhaust Modifications

BMW M340i Exhaust Upgrades (G20 & G21)

Increase the noise & performance of your BMW G20 / G21 M340i's B58 engine with an aftermarket exhaust system upgrade. Shop full exhaust systems & more.

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Leib BMW G Series & F Series CAN MIL Delete Module For OPF & Cat Errors
dAHLer BMW Exhaust Flap/Valve Controller-R44 Performance dAHLer BMW Exhaust Flap/Valve Controller-R44 Performance
Save £111.00
Grail Automotive BMW Exhaust Valve Controller Grail Automotive BMW Exhaust Valve Controller - Single Valve
Grail AutomotiveGrail Automotive BMW Exhaust Valve Controller
Sale priceFrom £258.99GBP Regular price£369.99GBP
Leib BMW B58 OPF Delete Cables (F20/F22/F30/F32/G20/G22/G42)-R44 Performance
Leib BMW G Series CAN BUS Pro 1 Valve (G42/G20/G22 etc)-R44 Performance Leib BMW G Series CAN BUS Pro 1 Valve (G42/G20/G22 etc)-R44 Performance
Remus BMW M340i/M440i xDrive Axle-Back System (G20/G22)-R44 Performance Remus BMW M340i/M440i xDrive Axle-Back System (G20/G22)-R44 Performance
BMW Helical Exhaust Valve 2.9inch SBS Type EV70532-MX0-33 BMW Helical Exhaust Valve 2.9inch SBS Type EV70532-MX0-33
Leib BMW G Series B58 B48 CatOPF Delete With CAN BUS Pro Functions - R44 Performance