Development:
Our first step into the Turbocharger era saw our San Marino Blue F80 Competition tested around the Nurburgring and Alpine roads, learning the product and opening a gateway of tuning/services with the platform, which we later pushed further on our M2 Competition instead.

DME lock
Later M4 Competition models (MY 2019+) have an 'OBD Lock' which prevents tuning from being carried out via the OBD port, we have to carry out a 'DME (Digital Motor Electronic) Unlock using our Tuning tools, which connects directly to the Engine ECU Pins, to carry out the Bench unlock, Once complete tuning car be carried out via the OBD port again.

Crank Hub
For some owners, the crank hub full fix is not a cost-effective solution, not to worry we have you covered! We can offer 'Crank hub friendly tunes' where we heavily limit the torque output, even down to stock if required, but build the power up in the upper RPM, to create a perfectly flat torque curve while increasing HP dramatically past 4500rpm. To date, we have had zero reported 'issues' with our Crank hub safer tuning.

Common Issues:
The weakest link is the Crank hub, More information can be found here

Gearboxes:
The majority of M cars come with the 7-speed DCT Gearboxes, which are known to take additional power and torque typically without issues, only when exceeding 600LBFT would we expect any issues with clutch slip. This can be easily addressed however with increased clutch pressures via software. No Software limitations are present restricting torque output with the DCT Box.
The rarer 6 speed manual gearboxes come equipped with a Twin plated clutch system, which has proven to hold up with over 550LBFT also without issues.

Tuning:
All our tuning is carried out with extensive knowledge of BMW tuning, limitations and experience, over time we will update software and hardware recommendations.  Our custom software calibrations can be offered to suit your needs if you already have hardware installed, tailored to your requirements (within hardware boundaries) or we have put together our recommended products that we have tried and tested our renowned WGM Tuning packages. With our custom software calibrations, the following features are offered:

• Vmax Removal (Speed limiter removed)
• Sports Displays recalibrated to suit new outputs
• Enhanced overrun on Sports mode 
• Cat warm-up removal

For Additional Features such as Map Switching, Antilag, and burble adjustment a Tuning Platform is required from the likes of ECUTEK, MHD or BM3, these are available at additional licence costs.
Expected Results are based on testing carried out on our Dyno Dynamics Dyno Tech AWD Rolling Road, from cars we have seen, and carried out development on, Results can vary from car to car, health and fuel quality used, all results are based on using 99ron based fuels. WG Motorworks only recommends tuning on 99ron, Shell V Power, Tesco Momentum and Esso 99

The first step in extracting power from the S55 engine requires no hardware changes, this is a software-only upgrade. The main objective was to keep the power climbing nearer to the rev limiter rather than flattening off, along with increasing the torque levels while following a similar power delivery to stock to avoid unnecessary torque spikes from the small twin turbo's. While retaining a safe AFR to ensure EGT / Catalyst temperatures are kept in check.

Expected Results, based on our Dyno Dynamics rolling Road: 500-540HP with 500-550LBFT

The final step to maximizing the efficiency of the stock turbochargers is removing the catalyst in the downpipes, Total removal of the catalyst is recommended for Track use only as it is not MOT compliant. With the cat-less downpipes installed Fueling can be optimized and new lambda targets set, along with a  slight increase in boost and ignition timing taking into account the less restrictive exhaust system. Standard cat back with or without GPF filters (2019 M4) can be still retained, however, optimal results are based on a free-flowing turbo back system. An uprated Charge cooler system is not a requirement, however, gains can still be achieved by installing one.

Expected Results, based on our Dyno Dynamics rolling Road: 530-560HP with 550-580LBFT

The stock turbochargers are the limiting factor when it comes to the next stage of performance, with compressors/turbines limiting any more flow. With larger compressors and turbines installed into the stock turbo housings, these 'Hybrids' allow much greater mass airflow and exhaust gas flow. High-flow downpipes are a must at this state of tune, and a cat-back system is advised for optimal gains.

Charge temperatures start to creep up when increasing the boost pressures - so depending on target HP and usage we would advise a charge cooler upgrade as well.

Water Methanol would also be a recommended upgrade when looking for maximum output, big gains can be seen.

Expected Results, based on our Dyno Dynamics rolling Road: 600-750HP with 600-700LBFT