VTT B58 GC / GC+ / GC-MID Turbocharger Upgrade

VTT B58 “GC / GC-MID / GC+” Turbocharger Upgrades Wheel Sizing / Power Support Model Wheel Size (Comp/Turb) Stock Engine Power Range GC 54/55 Up to 600WHP GC-MID (TU ONLY) 54/60 Up to 650WHP GC+ 67/68 Up to 800WHP Ready to take your B58 platform to the next level—without core charges, long waits, or compromising spool? VTT has you covered. Our 100% new casting B58 GC-Series turbochargers (GC, GC-MID, and GC+) retain the OE packaging advantages while removing the factory airflow limitations and weak internal architecture. We start by keeping what BMW did right, then eliminate every bottleneck we found: the restrictive factory inlet, inefficient bearing housing oiling, small thrust assembly, and anything else holding the B58 back. Then we incorporate proprietary VTT improvements and cast everything at full OE-level quality. The result? Serious B58 power made simple.

Brand: VTT · Part #: VTT-B58-GC

For off-road / competition use only. Not legal for use on public roads in the United States, including California.

• Ships from the brand or distributor, usually in 3–7 business days.
• Free US shipping on orders over $250.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.