N55 Stage 2 High Flow
Fits N55 engines. Check your car
A larger compressor wheel and upgraded internals for serious N55 builds.
Made to order, 8 weeks. Free shipping to the lower 48. Return policy
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The N55's single twin-scroll turbo hits a wall around 400 wheel horsepower. Our Stage 2 High Flow breaks through that ceiling with a larger compressor wheel and upgraded internals that push your build to 800 WHP territory. This isn't a bolt-on power adder; it's the foundation for serious N55 builds that demand more than stock boost can deliver.
Performance Gains
- Expect 100-150 additional wheel horsepower over stock with supporting modifications like fuel system upgrades and custom tuning.
- The larger compressor wheel maintains the N55's signature linear power delivery while supporting higher boost targets, typically 18-22 PSI depending on your build goals.
- Throttle response stays sharp thanks to the twin-scroll design, but now you'll pull hard through redline instead of tapering off at 5,500 RPM.
- Spool characteristics remain similar to stock, making this ideal for street builds that need track-day capability.
Fitment
N55 (2010-2018)
- E82 135i (2011+)
- F20 M135i
- F22 M235i
- F30 335i
- F32 435i
- F10 535i (2011+)
- F15 X5 35i
- F25 X3 35i
- F87 M2
Installation
Professional installation is strongly recommended. Turbo R&R on BMW engines involves working in tight spaces with oil and coolant lines, plus this custom manifold product requires experience with aftermarket turbo fitment. Lead time is 8 weeks as each unit is made to order. For PWG-equipped models, we recommend upgrading the wastegate to handle the increased flow. Install videos are available.
Need help planning your build or stuck mid-install? Text us at 813.252.1025. We will walk you through it.
Shipping
Free shipping to the lower 48 states. International shipping available. Contact us for a quote.