Pure Turbos PURE400 (NEW) Turbo Upgrade – BMW 2/3/4/5 Series, X1, X3, X4, Z4 (N20 / N26, EWG Only)

OVERVIEW

The PURE400 (NEW) is a Pure Turbos turbo upgrade for the 2.0L N20 / N26 four-cylinder, built on a new aftermarket housing to the OEM design for a direct-fit installation. It combines an upgraded billet compressor wheel, a high-flow turbine wheel and an upgraded center housing rotating assembly (CHRA). Pure Turbos rates it as 300+ whp capable, with results depending on fuel and supporting modifications.

Because the housing is new, there is no core exchange and no core deposit; your factory turbo stays with you. It is made for cars with the electronic-wastegate (EWG) turbo only. A Go Fast Bits DV+ diverter valve can be added as an option.

SPECS

• 300+ 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
• New aftermarket housing, OEM design, direct fit; no core required
• Electronic wastegate (EWG) cars only

PARTS INCLUDED

• PURE400 (NEW) N20 / N26 turbocharger on a new aftermarket housing
• Go Fast Bits DV+ diverter valve, when the DV upgrade option is selected

TECH RESOURCES

Additional Parts Required

• ECU tune: a custom tune is highly recommended by Pure Turbos to unlock the full power and for engine safety. Off-the-shelf maps can be used, but performance is limited to that map's parameters. Tune option we stock: Bootmod3 N20/N26 Tune.
• Turbo gaskets, oil and coolant line seals: single-use items that should be replaced during installation. They are not supplied with the turbocharger.
• Supporting fuel system: needed at higher power levels, e.g. an upgraded N20 / N26 high-pressure fuel pump and a flex-fuel kit for E85 blends (sold separately). Confirm your fueling before ordering; we can advise.

Installation

• Pure Turbos installation, pre-lube, break-in and core-return guide (PDF): pure-turbos-install-and-break-in-guide.pdf. Pre-lube the turbocharger through the oil inlet, idle 5–10 minutes without revving, then drive on low boost / light throttle until the car is properly tuned.
• Installation follows the factory turbocharger replacement procedure; professional installation is recommended.

Notes

• No core exchange or core deposit is needed for this version.
• Fits cars with the electronic-wastegate (EWG) turbo only. For pneumatic-wastegate (PWG) cars, see our Pure Turbos Stage 2 – N20 / N26 listing. Contact us with your VIN if you are unsure which turbo your car has.
• 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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