BMW M340i G20 Performance Parts & Upgrades

• BMW M240i (G42): same B58 engine
• BMW Z4 (G29)
• Toyota GR Supra (A90)
• BMW M3 (G80)
• BMW M2 (G87)
• BMW M135i / M140i (F20)
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• Intake and turbo: aFe and Dinan cold air intakes, carbon turbo inlet pipes, charge pipes and Turbosmart parts.
• Cooling: AMS and CSF heat exchangers, auxiliary radiators and transmission coolers for hot Australian summers and track days.
• Exhaust: Dinan axle-back exhausts and Scorpion systems.
• Suspension: AST coilovers, lowering springs and camber plates, plus HARDRACE and SPL control arms, toe links and bushings.
• Brakes: Alcon and Brembo big brake kits and Paragon 2-piece rotors.
• Engine: ignition coils and spark plugs, and GSC Power-Division camshafts, valves and springs for built B58s.

• xDrive: every Australian M340i is xDrive (all-wheel drive). Coilovers and springs are often made in separate rear-drive and xDrive versions, so pick the xDrive one.
• Sedan or Touring: most parts fit both the G20 sedan and G21 Touring, but rear suspension and exhaust parts can differ. Check the chassis codes in the title.
• Pre-LCI or LCI: the facelift (LCI) arrived in late 2022. Engine parts carry over, but check any trim or aero part against your build date.

Have a qualified workshop fit suspension, brake, cooling and engine parts. Get a wheel alignment after any suspension change and bleed and road-test the brakes after brake work. Some engine upgrades need a tune to suit; ask us if you're unsure.