B58

BMW B58 Performance Parts & Upgrades

The B58 is one of the finest inline-6 engines ever produced — and with the right upgrades, it’s capable of staggering power numbers. Import Authority stocks a hand-picked selection of B58 performance parts for BMW F and G chassis vehicles as well as the Toyota GR Supra A90.

What we carry for the B58:

• Turbochargers — drop-in upgraded turbos rated up to 800HP+
• Charge pipes — larger diameter aluminum upgrades for increased airflow
• Downpipes — 4" stainless race downpipes for maximum exhaust flow
• Performance packages — bolt-on HP upgrade bundles with tune support

Compatible with BMW M140i, M235i, M240i, 340i, 440i, 540i, M2, M3, M4 and Toyota GR Supra A90. Shop below and unlock your B58’s full potential.