VTT GC Turbocharger Upgrade - S58 M3 / M4 / X3 M / X4 M

VTT's GC turbos keep the S58's factory fitment and spool behavior, then fix the limits VTT found in the stock units: restrictive inlets, the bearing housing oiling layout and a weak thrust assembly. Housings are cast to OEM-level quality, and there's no core charge.

What you get

• GC: G25-550 spec, 58 mm compressor and 52 mm turbine wheels, rated up to 800 whp on a stock engine.
• GC+: G25-660 spec, 67 mm compressor and 54 mm turbine wheels, rated up to 950 whp on a stock engine.
• OE fitment with factory-like spool characteristics.
• No core charge to send back.

Brand: VTT · Part #: VTT-S58-GC-1

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.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• 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.