SPOOLOGIC Stage 1 Performance Turbocharger

The SPOOLOGIC Stage 1 B2BV-70A Turbocharger SL-100-065 is a performance upgrade for 2024-2026 Chevrolet Silverado and GMC Sierra 2500 3500 pickups with the 6.6L Duramax L5P. Built around the updated turbo configuration, its billet compressor wheel and upgraded turbine add airflow capacity for supported street and towing builds, supporting approximately 600-625 rear-wheel horsepower with matched tuning, fueling, and supporting modifications.

⚠️ Custom tuning is highly recommended. See tuning recommendations below.

Features

• Brand new, no core charge
• Direct-fit installation using factory connections
• 11-blade billet extended-tip compressor wheel
• 9-blade turbine assembly
• Journal bearings, 360-degree thrust bearing, and piston-ring seals
• New VGT unison ring and vanes
• Ceramic-coated turbine housing and center-section exterior
• Raw, red, or black compressor housing options
• High-speed VSR balanced

What's Included

• 1 SPOOLOGIC Turbocharger — SL-100-065
• 1 SPOOLOGIC Turbo Installation Gasket Kit — SL-310-261
• 1 SPOOLOGIC Turbo to Catalytic Converter V-Band Clamp — SL-330-036

Electronic actuator, pedestal, and oil lines are not included.

Fitment

• 2024-2026 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax L5P
• 2024-2026 Chevrolet Silverado 4500 5500 6500 6.6L Duramax L5D

Tuning and Supporting Modifications

⚠️ Custom Tuning Highly Recommended: Custom tuning is highly recommended to match this Stage 1 turbocharger to the engine, intended use, and supporting components.

Supporting Modifications: Upgrade components as needed to support your intended power level.

• Larger injectors and fuel-system upgrades may be needed to reach the listed power range.
• Intake and intercooler upgrades may be needed to reach the listed power range.
• Adequate exhaust flow and sealed exhaust connections.
• Boost and exhaust-gas-temperature monitoring during setup and loaded operation.

SPOOLOGIC does not provide custom tuning services. Customers are responsible for arranging application-appropriate tuning with a qualified tuning provider.

Power Support

Approximately 600–625 rear-wheel horsepower with a properly matched build. This is total power-support capacity, not a promised horsepower increase. Actual output depends on engine condition, fuel delivery, calibration, and the complete vehicle combination.

Compressor Wheel

• Blade design: 11 full-length blades with no splitters
• Compressor inducer: 64 mm
• Compressor exducer: 84.9 mm
• Extended tip: 91.5 mm
• Material: 5-axis CNC-machined billet aluminum

Turbine Shaft

• Turbine inducer: 73 mm
• Turbine exducer: 66 mm
• Turbine blade count: 9
• Material: High-nickel Inconel

Upgraded Internals

• Upgraded journal bearings
• 360° thrust bearing
• Piston-ring seals

High-Speed VSR Balancing

The rotating assembly is high-speed VSR balanced before shipment for smooth, consistent operation.

VGT Control System

The turbocharger retains VGT-based exhaust-brake operation on trucks equipped with that function from the factory. The vehicle calibration must support exhaust braking and be compatible with the upgraded turbine and VGT configuration.

• New VGT unison ring and vanes — Installed for variable-geometry operation

Reuse a serviceable VGT actuator or obtain the correct replacement.

⚠️ After transferring or installing the VGT actuator, complete the applicable GM turbocharger learn procedure.

Coatings and Finish Options

The turbine housing and center-section exterior are ceramic coated to help manage radiant heat and resist oxidation. Heat reduction varies with operating conditions. The finish options below apply only to the compressor housing.

• Raw: Natural aluminum compressor housing with no exterior coating
• Red: Red powder-coated compressor housing
• Black: Black powder-coated compressor housing

OEM Cross-References

• GM — L5P pickup original application: 12725144

⚠️ Emissions Notice

Not CARB approved. Not legal for sale or use in the state of California.

1-Year Limited Warranty

Every SPOOLOGIC turbocharger carries a one-year limited warranty against defects in materials and workmanship from the original purchase date. Coverage applies to the original purchaser with dated proof of purchase. Contact SPOOLOGIC for return authorization before shipping the turbocharger for inspection. If inspection confirms a covered defect, SPOOLOGIC will repair or replace the turbocharger at its discretion. Coverage excludes damage caused by foreign-object debris, oil starvation, contaminated or restricted oil supply or drainage, extended oil-change intervals, overboosting, overspeed, overfueling, excessive exhaust temperatures, improper installation or startup, improper tuning or repairs, or operation outside the listed application or intended operating range. Normal cosmetic wear, coating discoloration, and heat-cycling marks are not covered. Customers pay shipping to SPOOLOGIC and return shipping, whether the claim is approved or denied. Labor, diagnostics, removal, reinstallation, towing, downtime, and other related expenses are not covered. See the SPOOLOGIC Warranty Policy for complete terms and claim procedures.