Pure Turbos Stage 2 Upgrade Turbo – BMW B46 / B48

OVERVIEW

The PURE Stage 2 upgrade turbocharger takes the factory BMW B46/B48 turbo and rebuilds it around Pure Turbos’ own billet compressor wheel and a larger high-flow turbine wheel, with an upgraded thrust system to cope with the extra load. Every unit is CNC machined and VSR high-speed balanced before it leaves the building.

Pure rates this turbo at around 400whp. It is a build-to-order upgrade, so allow lead time, and it must be run on a custom ECU tune.

SPECS

• Pure Turbos custom billet compressor wheel
• Hi-flow, larger turbine wheel
• Upgraded thrust system
• CNC machined
• VSR high-speed balanced
• Pure Turbos rating: supports around 400whp
• Build-to-order: allow approximately 3–4 weeks, and 4–8 weeks during peak season
• Core required — ship your factory turbocharger(s) to Pure Turbos, or pay a refundable core deposit and return the cores afterwards
• Core return window: full core-deposit refund when the cores are returned within 60 days of receiving the upgrade; returns after 60 days are subject to deductions, and physically damaged cores may be reduced in value or denied
• Warranty: Pure Turbos one-year, unlimited-mileage limited warranty

PARTS INCLUDED

• One PURE Stage 2 upgrade turbocharger for the BMW B46/B48 engine
• Complete kit as supplied by Pure Turbos; see the installation instructions for the full bill of materials. Gaskets, O-rings and hardware are not included.

TECH RESOURCES

Additional Parts Required

• A custom ECU tune is mandatory. Pure Turbos states: “DO NOT WIDE OPEN THROTTLE WITHOUT A PROPER TUNE.” Tune options we stock: bootmod3 B46/B48 tune, JB4 Tuner for BMW B38/B46/B48
• New gaskets and O-rings. Pure Turbos: “Always, use new gaskets and O-rings (where applicable).” These are not supplied with the turbocharger.
• Core turbocharger(s) — either ship your factory units to Pure Turbos for the build, or select the refundable core-deposit option and return your cores afterwards. Remove all lines, fittings, actuators and accessories before shipping cores.

Installation

• Pure Turbos installation, pre-lube and break-in procedure (manufacturer FAQ): pureturbos.com/faq — pre-lube the turbocharger through the oil inlet, spin the compressor wheel to coat the bearings, idle 5–10 minutes without revving, then drive on low boost/light throttle until the car is properly tuned
• Pure Turbos core return sheet (PDF): pure-turbos-core-return-sheet.pdf — print it, fill it in and include it with your core shipment
• Professional installation is strongly recommended; turbocharger removal and refitting requires the correct torque specs, clean oil and coolant feed lines and a full oil service.

Notes

• **Price as listed is for parts only. Labor is not included**
• THESE PARTS ARE LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND ARE NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE.
• Pure Turbos does not publish an official part number for this upgrade and no SKU is recorded against this listing, so no PART NUMBER section is shown. Confirm the exact configuration with Speed Logic when ordering.
• The existing listing carries no chassis-level fitment data from Pure Turbos, so the table above reflects only what the product title states. Confirm your exact chassis, model year and turbo configuration with Speed Logic before ordering.

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