CTS Turbo BMW S55 F80 F82 F87 Stage 2+ Turbocharger Upgrade for M2 Competition, M3 and M4
Unlock serious power and reliability with the CTS Turbo Stage 2+ turbocharger upgrade for the BMW S55 engine. Perfect for F87 M2 Competition, F80 M3 and F82 F83 M4 owners seeking a bolt-on S55 twin turbo upgrade that delivers exceptional flow, fast spool and OEM-level fitment. Designed to work with factory location, factory wastegate actuators and stock-fit downpipes, intakes and charge pipes, this BMW S55 turbo kit is the ultimate performance solution for street, track and drag builds.
Engineered using transient flow analysis and flow bench testing, the CTS Turbo Stage 2+ twin scroll housings keep all the benefits of stock-style fitment while dramatically improving airflow. With supporting modifications and a built engine, these turbos have achieved an impressive 808 whp, showcasing what the platform can do with a properly designed S55 turbo upgrade.
Each unit is a brand new turbocharger with upgraded internals, not a hybrid and not a rebuild. No core charge is required. The kit includes large, wire-reinforced silicone inlets that maintain shape under vacuum and integrate with any stock-fit intake system. VSR balancing exceeds OE tolerances to deliver smooth operation, durability and reliable high-boost performance.
For those searching terms like BMW S55 turbo upgrade, M2 Competition turbo upgrade, F80 M3 turbocharger, F82 F83 M4 turbo kit, Stage 2+ S55 turbos, CTS S55 turbos, plug-and-play S55 turbos, this package ticks every box: OEM fit, big power potential, proven materials and exceptional drivability when tuned correctly.
Why choose the CTS Turbo Stage 2+ S55 upgrade
- Direct bolt-on S55 turbo upgrade for BMW M2 Competition, M3 and M4
- Works with stock-fit downpipes, intakes and charge pipes
- Brand new turbochargers with no cores required
- Moves more air at lower boost for strong, reliable gains
- VSR balanced beyond OE standards for longevity and smoothness
- Reinforced silicone inlets included and compatible with any intake
- Ideal for high-performance road, track day and drag strip builds
Real-world performance
With the right supporting modifications and a built S55 engine, these turbos have produced 808 whp. They are designed to achieve strong power without over-speeding, promoting reliability and consistent results. Customer feedback consistently praises the OEM-like fitment, fast spool and impressive top-end.
Recommended boost and tuning guidance
Optimal boost levels are typically 24 to 25 psi with approximately 85 to 88 percent WGDC. Your tuner must confirm and adjust these settings for your specific build and fuel. Wastegate actuators must be calibrated using ISTA+ software prior to tuning. Installation and tuning must be carried out by a qualified professional.
What’s included
- Pair of brand new CTS Turbo Stage 2+ turbochargers
- Large wire-reinforced silicone turbo inlet pipes
- Compatibility with factory installation hardware and gaskets
- Reuse your original wastegate actuators and stock-fit ancillaries
Technical features
- Complete brand new turbochargers; no core exchange required
- Bolt-on journal bearing CHRA with heavy-duty bearings
- Increased turbine shaft diameter by 0.5 mm and thrust surface by 2 mm
- Billet 8-blade compressor wheel, 47.4 mm inducer, 58 mm exducer with 63.10 mm extended tip
- 9-blade Mar-M 246 superalloy turbine wheel, 52 mm inducer, 45.6 mm exducer, high flow
- 316 stainless steel exhaust housings and wastegate components
- VSR balanced to exceed OE tolerances
- Wire-reinforced silicone turbo inlets included
- Compatible with factory installation hardware and factory wastegate actuators
Compatibility
BMW S55 engine applications
- BMW F87 LCI M2 Competition S55 2018+
- BMW F80 M3 Saloon S55 2012 to 2015
- BMW F80 LCI M3 Saloon S55 2015 to 2018
- BMW F82 M4 Coupe S55 2013 to 2017
- BMW F82 M4 GTS Coupe S55 2013 to 2017
- BMW F82 LCI M4 Coupe S55 2016 to 2019
- BMW F82 LCI M4 CS Coupe S55 2016 to 2019
- BMW F83 M4 Convertible S55 2013 to 2017
- BMW F83 LCI M4 Convertible S55 2016 to 2019
Fitting and calibration
Professional installation and custom ECU calibration are required. Wastegate actuators must be calibrated using ISTA+ before tuning. For supply and fitting, Nforcd in Warwickshire can help. Request a fitting quote at Sales@nforcd.com.
Compatibility check
We verify fitment before dispatch. Provide your registration number for UK vehicles or the last 7 digits of your VIN at checkout and we will confirm compatibility.
Part number
CTS-TR-0055
Manufacturer
CTS Turbo
Warranty
1-year CTS Turbo warranty
Key search terms
BMW S55 turbo upgrade, S55 Stage 2+ turbos, CTS Turbo S55, BMW M2 Competition turbo upgrade, F80 M3 turbo upgrade, F82 F83 M4 turbo upgrade, S55 twin turbo kit, bolt-on S55 turbos, VSR balanced turbochargers, billet compressor wheel S55, Mar-M 246 turbine, stainless exhaust housing S55, no core charge S55 turbos, stock fitment S55 downpipes and intakes.