Pure Turbos Stage 2 Upgrade Turbo – BMW 2/3/4/5 Series, X1, X3, X4, Z4 (N20 / N26)

OVERVIEW

The Pure Stage 2 is Pure Turbos' OEM-based turbo upgrade for the 2.0L N20 / N26 four-cylinder in F-Series BMW 2, 3, 4 and 5 Series models, the E84 X1, F25 X3, F26 X4 and E89 Z4. Pure rebuilds the factory turbocharger with an upgraded billet compressor wheel, a high-flow turbine wheel and an upgraded center housing rotating assembly (CHRA), while keeping the OEM housing for a factory-like installation. Pure Turbos rates the upgrade as 400+ whp capable, with results depending on fuel and supporting modifications.

This is a core-exchange upgrade. Choose whether to send your factory turbo to Pure first, or pay a refundable core deposit (pneumatic wastegate/PWG or electronic wastegate/EWG) and return your core after your upgraded turbo arrives. A Go Fast Bits DV+ diverter valve can be added as an option.

SPECS

• 400+ whp capable (results vary by fuel and supporting modifications)
• Upgraded billet compressor wheel
• High-flow turbine wheel
• Upgraded CHRA (center housing rotating assembly) for durability under high boost
• VSR high-speed balanced
• Retains OEM housing

PARTS INCLUDED

• Pure Stage 2 N20 / N26 turbocharger (one)
• Go Fast Bits DV+ diverter valve, when the DV upgrade option is selected

TECH RESOURCES

Additional Parts Required

• Custom ECU tune: required by Pure Turbos for engine safety and to reach the rated power. Tune option we stock: Bootmod3 N20/N26 Tune.
• Turbo gaskets, oil and coolant line seals: single-use items that should be replaced during installation.
• Supporting fuel system: needed at higher power levels. Confirm your fueling before ordering; we can advise.

Installation

• Pure Turbos does not publish installation instructions or videos for this upgrade; professional installation is recommended.
• Pure Turbos pre-lube and break-in procedure (manufacturer FAQ): pureturbos.com/faq
• Pure Turbos core return sheet (PDF): pure-turbos-core-return-sheet.pdf. Print it, fill it in and include it with your core shipment.
• Before sending a core to Pure, remove all accessories and hardware from it (oil lines, coolant lines, actuators, inlets and similar). Pure discards anything that is not part of the core unit.

Notes

• Send-in option: lead time starts once Pure receives your turbo.
• Core deposit option: $300 for a pneumatic-wastegate (PWG) core or $500 for an electronic-wastegate (EWG) core. The deposit is refunded once your factory turbo is returned to Pure within 60 days of receiving your upgrade. Choose the deposit that matches the wastegate type of your factory turbo.
• DV upgrade option: keep your factory diverter valve, or add a Go Fast Bits DV+ diverter valve (+$135).
• Pure Turbos includes a limited 1-year / unlimited-mile warranty.
• Legal notice: these parts are for off-road use only and are legal solely for competition racing vehicles as defined under California law. They are not legal for use on public roads.
• Price is for the turbocharger only; labor is not included.

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