Dinan BMW B58 (M240i/M340i/Z4)

Carbon fibre cold air and semi-open intakes; turbo inlet pipes and charge pipe systems; high performance heat exchangers; axle-back, cat-back and valved exhaust systems, high flow mid-pipes and resonator delete kits; performance spring sets, ride quality and handling kits, sway bars, strut tower braces, tension strut ball joint kits and toe links; carbon fibre engine covers; spark plugs and ignition coils; wheel spacers, lug bolts and exhaust valve remotes.

Identify your chassis code before ordering. Common B58 chassis codes include F22/F23 (M240i), G42 (M240i), F30/F31 (340i), F32/F33/F36 (440i), G20/G21 (M340i), G22/G23/G26 (M440i) and G29 (Z4 M40i). Some Dinan listings also reference the B58D or Gen3 B58 engine designation, and certain parts differ between rear-wheel drive and xDrive, pre-LCI and LCI, or standard and M Sport specification. Where a listing names a specific engine code, model year range or drivetrain, match it to your vehicle's build details or VIN.

Most Dinan intakes, charge pipes and axle-back exhausts are designed as bolt-on replacements using factory mounting points, while suspension, brake and chassis components require correct torque procedures and, in the case of springs or handling kits, a wheel alignment afterwards. Basic hand tools, a safe hoist or jack stands, and the relevant BMW torque specifications are typically required. Installation by a professional workshop is recommended, and any part that alters exhaust noise or emissions equipment should be checked against your state's road rules before fitting.

Which BMW models use the B58 engine? The B58 is BMW's 3.0-litre turbocharged inline-six used in models including the M240i, 340i/M340i, 440i/M440i and Z4 M40i, among others.

Will an F-chassis part fit my G-chassis car? Generally no. Dinan lists parts by chassis code, so an F22/F30 component is not interchangeable with G20/G42 unless the listing states both.

Do these parts suit Australian-delivered cars? Fitment follows the chassis and engine codes shown on each listing. If you are unsure which code applies to your car, contact us with your VIN.