BMW B58 Turbocharger Upgrade - Vargas Turbo VTT-B58-GC

Product Description

BMW B58 Turbocharger Upgrade - Vargas Turbo VTT-B58-GC

Wheel Sizing / Power Support

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. GC turbos are direct bolt-on upgrades that retain all factory connections (oil, water, charge pipe, downpipe) while supporting 600WHP+ — with factory-like spool.

Key Design Elements

• 100% new castings with factory restrictions removed — not stock housings with oversized wheels stuffed inside

• Full 3″ inlet with included 3″-4″ silicone elbow eliminating all OEM inlet restriction

• 9-blade Mar-M 246 turbine and 9-blade point-milled compressor wheel aero

• Improved bearing housing and upgraded thrust design

• Direct connection to factory oil, water, downpipe, and charge pipe

• No core charge — own your stock unit, sell it, or keep it

• Production units will be stocked for same / next day shipment (check availability)

• Full 12-month unlimited mileage / no-hassle replacement warranty

Package Includes

• 1x VTT B58 GC-Series Turbocharger

• 1x VTT 3”-4” silicone inlet elbow (with factory adapters)

• 1x 3″ inlet clamp

• Optional 4″ connector for aftermarket intake compatibility

Notes / Fitment

• GC inlet tube fits stock airbox and some aftermarket intakes with no modification. Some intakes (ex: Injen) may require slight modification or use of VTT MAF housing + filter.

• This system removes the factory PTC heater. A shadow DME code will be present on scan tools, but in testing has not triggered a check engine light. This can be coded out if desired.

• The GC is Super Core ONLY, meaning no exhaust housing; this turbo plugs directly into your factory exhaust housing.

Recommended Supporting Mods

As with any turbo upgrade: fuel system upgrades, tuning, intercooler, downpipe, and intake are recommended to fully realize maximum power potential. Gains will still occur on a stock B58, but supporting mods unlock the true capability of each GC model.

Vargas Turbocharger Technologies. specializes in manufacturing, servicing, rebuilding upgraded turbochargers, and turbocharger accessories in all different shapes and sizes for the automotive performance aftermarket, and OEM Sector… Whether you need to have your turbocharger repaired or you are looking to purchase a new, rebuilt, or custom turbocharger, you can rely on our years of experience, our quality, and our attention to detail. Not only will you receive a great product at a great price, but you’ll also gain the peace of mind of knowing that we’ll be there when you need us. Best of all, you can rest assured knowing that your turbocharger will be designed or selected for your specific needs. Turbo chargers aren’t a “one size fits all” solution and we have the experience it takes to ensure that you select and properly install the right turbocharger for your engine. The type of turbocharger you purchase is just as important as the shop you choose to purchase from. At VTT, we don’t just pull an item off the shelf and ship it while hoping for the best. Instead, we’ll take the time to make sure that you are purchasing the right turbocharger for your engine and overall needs.
From OEM turbochargers to aftermarket turbochargers to custom turbocharger design, we can individually tailor a turbocharger for your engine based on your engine’s specifications. Thanks to our rigorous analysis and testing procedures, we can fabricate or help you select the right turbocharger for the job. We also ensure that your turbocharger, whether rebuilt, purchased new, or custom designed, is made with the highest quality parts and components under the guidance of an experienced and capable staff. All of this translates to a smooth and efficient buying process so that you know the VTT turbocharger product you select is perfect for your application.