PURE Turbos Stage 2 Turbo Upgrade 2007-2016 BMW N54 335i 135i Z4

PURE Stage 2 is the bigger N54 upgrade for cars that have outgrown Stage 1. PURE rebuilds both factory turbos around larger billet compressor wheels and high-flow turbine wheels while keeping the BMW housings, and this version is built for the 450 to 600 wheel horsepower range with ethanol, supporting mods and a custom tune. Price is for the pair.

What PURE changes inside

PURE fits a billet compressor wheel and a high-flow turbine wheel sized for the N54, 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 turbos mount in the factory location and work 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 turbos first (no deposit): you ship your factory turbos to PURE, they are 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 turbos 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.

If you pay a core deposit, pick the 335i LHD option for a left-hand-drive 335i or 335is, or the All Others option for the 135i, 535i, 740i, X6 and Z4.

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 housings and mounting points, no fabrication
• Built for the 450 to 600 whp range with fuel, supporting mods and tune
• Optional silicone inlet pipes for the twin turbos
• Optional turbo heat blankets
• Price covers both turbos

What's Included

Both upgraded N54 turbochargers built on the factory housings, plus any inlet pipe or heat blanket option you choose. Not included: gaskets, oil lines, coolant lines or the tune.

Specifications

Fitment notes

Fits the N54 twin-turbo cars listed below, US model years. It does not fit the N55 single-turbo cars (2011 and later 335i, 135i and 535i). The 1M Coupe is not listed; call us to confirm before ordering for one. For the 600 to 700 whp range, see PURE Stage 2 Hi-Flow.

Fitment