BMW M3 G80 M4 G82 Turbocharger SET

For the BMW M3 (G80) and M4 (G82/G83), a complete turbocharger set typically refers to the twin-turbocharger system of the S58 3.0L Inline-6 engine. Whether you are looking for a brand-new factory replacement in original packaging or a high-performance “Stage 2/3” upgrade, the package is defined by its integrated manifold design.

1. OEM Genuine BMW Turbocharger Set

The S58 engine utilizes two mono-scroll turbochargers, each dedicated to three cylinders (Bank 1 and Bank 2). In a “New in Original Packaging” set, you receive:

• Integrated Exhaust Manifolds: Unlike previous generations, the turbochargers on the G8x are permanently cast into the exhaust manifolds. A complete set includes both the Bank 1 (Cyl 1-3) and Bank 2 (Cyl 4-6) manifold/turbo units.

• Electronic Wastegate Actuators (EWG): The set comes with the pre-installed electronic actuators that provide the precise boost control necessary for the S58’s complex mapping.

• Oil & Coolant Feed Lines: Factory sets in original packaging often include the primary hard lines and high-temperature gaskets required for a leak-free installation.

OEM Part Numbers (Reference):

• Bank 1 (Cyl 1-3): 11658469097

• Bank 2 (Cyl 4-6): 11658469098

2.  Upgrade Sets (Hybrid Turbos)

If the package is from a performance brand like Pure Turbos, TTE (TheTurboEngineers), or Mosselman, it is designed to fit the factory location while offering significantly more power.

• Billet Compressor Wheels: Larger, CNC-milled wheels (e.g., 7+7 blade designs) that move more air at lower RPMs, reducing heat and increasing top-end “pull.”

  High-Flow Turbine Wheels: Upgraded 9-blade turbines that reduce backpressure, allowing the engine to breathe better at high boost levels.

• Thrust Bearing Upgrades: 360-degree heavy-duty thrust bearings to handle the increased axial load of running 30+ PSI.

• Capabilities: These sets are typically rated for 800 to 1,000+ HP, depending on the “Stage” (e.g., TTE940 or Pure Stage 2+).

3. Technical Specifications Table

4. “New Original Packaging” Contents

When purchasing a professional-grade set in its original crates or boxes, the following should be verified:

1. VSR Balance Report: For upgraded sets, a serial-numbered document proving the turbos were balanced up to 250,000 RPM.

2. Sealed Gasket Kit: Includes the multi-layer steel (MLS) manifold gaskets and O-rings for the oil/coolant lines.

3. Core Note: If buying “New Original,” you are purchasing the units outright. If the package mentions a “Core Charge,” you are expected to send your old turbos back to the manufacturer.

Professional Note: After installing a new set of S58 turbos, the Electronic Wastegate Actuators must be calibrated using BMW ISTA+ or a compatible diagnostic tool before the first start-up to ensure the “closed” position is correctly learned by the DME.