New Flow Max Series of N54 Turbochargers — FLOW MAX +
The Flow Max + is the ultimate BMW N54 turbo upgrade for serious street and track performance. If you are chasing big power and fast spool from your BMW N54 twin turbo platform, the Flow Max + delivers. Arguably the highest flowing set of N54 turbochargers available, these turbos are proven to support well over 800 whp with a highly usable powerband from around 3300 to 7450 rpm. Ideal for quarter mile, half mile, time attack and fast-road builds.
We have fitted and used these turbos and our customers love the response, top-end pull and reliability. Machined, balanced and assembled in the USA with premium components, the Flow Max + combines race-proven materials with thoughtful serviceability for long-term performance.
Fits: BMW 135i, 535i, Z4 RHD (N54)
Free shipping included
Why choose Flow Max + for your BMW N54
- 2-piece stainless steel V-band exhaust manifolds for strong flow and durability
- Quick-connect V-band clamps allow turbo removal without taking the manifolds off the engine
- Flow Max exhaust housings deliver up to 30% increase in overall flow and efficiency over many other turbos on the market
- MAR-M alloy turbine wheel rated up to 1060°C
- New Flow Max turbine wheel for improved flow and efficiency
- Stainless steel turbine housings rated up to 1060°C
- New Flow Max Series forged compressor wheel, designed to be up to 15% more efficient than the previous wheel
- Comprehensive balancing: component and low speed, then high speed VSR on state-of-the-art CIMAT equipment at 0.3 mg or less
- Upgraded dual oil port thrust assembly machined from copper bar
- Upgraded thrust collar and spacer, 14 mm vs 10 mm
- Premium internal bearing housing components by Mitsubishi and Melett
- Large 2 inch compressor cover inlets, 2 inch inlets required
- No cores needed
- 12 month warranty
Performance focus
Designed for enthusiasts who want maximum headroom from the N54 engine with excellent drivability, Flow Max + turbos shine on high-boost, high-flow setups while maintaining a broad powerband. They are perfect for competitive events and for fast-road cars that demand both response and top-end power.
Machined, balanced and assembled in the USA
Each turbocharger is precision built with strict balancing standards for smooth operation and longevity. The use of high-temperature stainless steel and MAR-M alloy components supports sustained performance under demanding conditions.
Recommended tuners
- Wedge Performance
- Doc Vu
- David Shoup Tuning
Fitting and installation
Professional fitting available at Nforcd in Warwickshire. Request a quote: Sales@nforcd.com.
Resources
CURRENT LEAD TIME: 14 to 28 business days
Search-friendly terms
BMW N54 turbo upgrade, N54 turbochargers, N54 twin turbos, Flow Max Plus, Flow Max +, BMW 135i turbo upgrade, BMW 535i turbo upgrade, BMW Z4 N54 turbo upgrade RHD, N54 big turbo kit, N54 hybrid turbos, N54 performance turbos, 800 whp N54, V-band N54 turbos, stainless steel N54 manifolds, UK N54 tuning, BMW N54 high flow turbos, N54 forged compressor wheel, MAR-M turbine wheel N54, N54 2 inch inlets, right hand drive N54 turbos.