BMW N55 Stage 3 Hybrid Turbo Upgrade | M2 M235i 335i 435i | 540-550 HP

Serious Performance Upgrade

For N55 owners who find the Stage 1 and Stage 2 upgrades insufficient, the Stage 3 build is the final answer. We have re-engineered the internal flow characteristics to handle the exhaust backpressure that typically plagues the N55 at high boost. By integrating an oversized 9-blade turbine wheel, we unlock the top-end breathing required to reach 550 HP, transforming your BMW into a genuine supercar contender while retaining the factory look and fitment.

Why This Turbo Wins

• Massive power ceiling of 540-550 HP
• High-flow 9-blade turbine wheel for reduced backpressure
• Ultra-large Billet CNC 6+6 compressor wheel
• Upgraded thrust bearing system for sustained high boost
• CNC machined exhaust and intake housings
• Retains OEM oil and water line configuration

Internal Upgrades

• Custom Billet 6+6 Compressor Wheel: Maximum diameter for highest possible air mass flow.
• Oversized 9-Blade High-Flow Turbine: Significantly larger than stock to maximize exhaust discharge.
• Upgraded Bearing System: Reinforced internals to allow the turbo to hold high boost levels safely.
• Precision CNC Machining: Both housings and sealing plates are profiled for the new aero components.
• New Bearing Housing: Ensures structural integrity at higher thermal loads.
• VSR Precision Balancing: Essential for reliability at the extreme RPMs required for 550 HP.

Performance Characteristics

The Stage 3 unit is a top-end monster. While it maintains the smooth N55 power delivery, the torque curve stays flat much longer into the RPM range compared to smaller units. Expect a ferocious pull from 3,500 RPM all the way to the redline. This is the ideal setup for highway pulls, 1/2 mile events, and high-speed track use.

Vehicle Compatibility

Compatible with BMW N55 engines (please specify your model/wastegate type):

• BMW M2: F87
• BMW 1 Series: M135i
• BMW 2 Series: M235i
• BMW 3 Series: 335i (E90/F30)
• BMW 4 Series: 435i
• BMW 5 Series: 535i (F10)

Weight	5 kg
Product type	Just Upgrade, Complete Turbo
Power range	550HP

⟶ Warranty
Every upgraded turbocharger comes with a 12-month warranty with no mileage limit.

⟶ Lead Time & Shipping
We typically need around 2 weeks to complete and dispatch your upgraded unit. In more complex cases, allow up to 3 weeks (turbo upgrades demand precision, and our machining process is not something we rush).

Shipping costs and carriers:

• European Union: €25 via DPD
• United Kingdom: €49 via DHL
• Rest of the World: €99 via UPS

Average delivery time: 3–14 working days.

⟶ Full Insurance
Every parcel is fully insured from our workshop to your door.

⟶ Don't See Your Turbo Listed?
Our catalogue is just a fraction of what we can do. Contact us, our development team is constantly working on new models and we can likely build what you need.

⟶ Required Information at Checkout
To ensure your turbocharger is built correctly, please include the following when placing your order:

• Engine code
• Car model
• Stock power output
• VIN number

⟶ Which Option Is Right for You?

• Just Upgrade: You send us your existing turbocharger and we modify it. The unit must be genuine and free of cracks.
• Complete Turbo: We supply a fully built, ready-to-install turbocharger set. Nothing to send, just order and fit.

• Turbo Modification Service (Core Exchange Type)
  This listing is for the modification of your original turbocharger. You must send your turbocharger to us for upgrade.
• Turnaround Time: up to 14 working days after receiving your turbo.
• Ready-built turbocharger may be available separately after prior arrangement.
• If the electronic actuator/controller is damaged, repair/replacement is not included.
• If no old turbo is sent, a refundable core deposit applies.