PURE Turbos PURE800 Turbo Upgrade 2016-2021 BMW B58 Gen 1

The PURE800 is the big upgrade for the first-generation B58 that keeps the factory BMW turbo housing. PURE rebuilds the stock turbo around larger, more efficient wheels so it bolts in where the original was, then adds the PURE silicone inlet kit. With fuel, supporting mods and a custom tune it supports more than 700 wheel horsepower.

What PURE changes inside

PURE fits a billet compressor wheel and a high-flow turbine wheel sized for the B58 Gen 1, then upgrades the center housing rotating assembly (CHRA) to handle the higher shaft speed and boost. Every unit is balanced on a VSR high-speed balancer before it ships. The factory compressor and turbine housings are kept, so the turbo mounts in the factory location and works with the factory plumbing and heat shielding, with no cutting or fabrication.

How the core charge works

PURE builds this upgrade from a factory turbocharger core, so you choose how to supply one when you order:

• Send in your turbo first (no deposit): you ship your factory turbo to PURE, it is rebuilt to this spec and shipped back. You pay only the upgrade price.
• Pay a refundable core deposit: PURE ships a finished upgrade from stock right away. The deposit shown in the option name is added to the price, and it is refunded in full when PURE receives your old turbo in rebuildable condition within 60 days of delivery.

Before you ship a core, remove the oil lines, coolant lines, actuators and inlets. Cores that arrive damaged or incomplete may not get the full refund, so call us before you send one if you are unsure.

Warranty and use

PURE backs its turbo upgrades with a limited 1-year, unlimited-mile warranty. A custom ECU tune is required, and the warranty assumes a qualified tuner and installer. This part is for off-road and competition use only and is not legal for street use in California or other states with similar emissions rules.

Features

• Billet compressor wheel for more airflow at the same shaft speed
• High-flow turbine wheel that reduces exhaust back pressure
• Upgraded CHRA, VSR balanced for durability at high boost
• Factory housing and mounting points, no fabrication
• PURE silicone inlet kit included
• Supports 700+ whp with fuel, supporting mods and tune

What's Included

One upgraded B58 Gen 1 turbocharger built on the factory housing; one PURE silicone inlet kit. Not included: gaskets, oil lines, coolant lines or the tune.

Specifications

Fitment notes

For the first-generation B58 only. It does not fit the B58 Gen 2 in the 2020 and later G-chassis cars, which has its own PURE pages. US model years are listed: the M140i was never sold in the US, and the 440i and M240i arrived for 2017. The 740i listed is the US long-wheelbase G12.

Fitment