MCB Performance

Performance BMW & VAG Tuning.

08/10/2026

F10 M5 - 686hp & 890nm.

We recently had this F10 M5 in for a Custom Stage 2 tailored for 97ron fuel.

One of the runs actually made the magic 7XXhp but was on the limit of what the stock DCT clutches was holding on this specific example. So we dialled it back to a level where it was holding reliably.

Despite the known reliability issues of these platforms, once rectified these are extremely capable engines for making fantastic gains.

06/10/2026

M140i - 412hp & 600nm.

We recently had this M140i in for our custom Stage 1 calibration.

This variant being the later OPF model we focussed on a sensible load target tapering the boost off at higher rpms.

Mapped for 97ron fuel.

TCU Torque patch also applied to Gearbox, to allow us to run calibrated torque as always.

Stock - 338hp & 502nm
MCB Stage 1 - 412hp & 600nm.

More can easily be acquired on this platform with an aftermarket exhaust & TU HPFP.

01/10/2026

Some of the EA888 platform cars we have completed over the last week.

These engines are very sensitive to fuel quality and spark health, so often require a few map revisions to dial them in specifically to the car / setup.

On 97ron (depending on parts) we often see around the 360-380hp / 520-545nm mark without octane booster on our dyno. For closer to the 4XXhp, 99ron or E blend is required.

We always recommend a step colder plug on these, gapped appropriately.

For DSG models, the vehicles fitted with DQ250’s have a software limit of 400nm. It’s vital this is increased and relative clamping pressures are adjusted to allow us to run the OEM scaled torque model.

We can also add on-the-fly map switching, anti-lag and other features to EA888 platforms.

29/09/2026

G82 M4 - Stage 1+ - 651hp & 900nm.

Same Day Unlock & Tune.

We recently had this stunning G82 M4 in for our custom ECU & TCU calibration tailored for BP 97ron fuel.

With OEM Downpipes left intact (cats present) we tuned this focussing on dialling in the boost / timing to suit the 97 Ron.

We carried out the following:

- ECU Unlock.
- Stage 1+ for 97 Ron.
- Enhanced Overun in Sport only.
- Exhaust Valves opened to 100% in Sport only.
- Sports Displays rescaled.
- Custom TCU Calibration.

Dyno Stock - 531hp & 680nm.
MCB650 Calibration - 651hp & 900nm.

We can offer these same day turnaround.

28/09/2026

2026 X7 B57 40d - 450hp & 859nm (With MHEV Motor).

Testing the length capability of the new dyno this one…

Quite a bit of time went into this, being the first DDE9 MD1CS115 we have come across. However, after a few days working through a Damos we were able to offer all the usual add on’s that we offer from the previous generation…

- Stage 1 Power (Fully calibrated torque model).
- Sports Displays.
- Oil Pressure Fix.

Remember as well.. 20hp of this can be accounted for from the MHEV motor.

Stock - 352hp & 720nm.
MCB Tuned - 450hp & 860nm.

Serious gains over stock.

Damos, Mappacks & File Service is available for all MD1CS115 variants. Private message us.

25/09/2026

M340i - Stage 1 - 461hp & 700nm

We recently carried out a Stage 1 on this tidy M340i adding the following:

- Stage 1 Calibration for 97 Ron Fuel.
- Sports Display Rescaling.
- TCU Torque Patch.

A common discussion on this platform is the OTS solutions offered vs a custom calibration.

OTS maps run a descaled torque model, effectively tricking the ECU to produce more torque than the TCU software limit allows. On these; the software limit within the TCU is 550nm. On a long term basis, this is not ideal for gearbox reliability.

Instead we do the following:

- Maintain correct load / torque model. Rescaling and extrapolating to the correct new load setpoint.
- Patch the TCU software limit (if customer does not opt for a TCU calibration) to ensure the requested torque correlates with the engine torque.
- Correctly adjust ignition timing for given fuel quality (Northern Irish 97ron).
- Maintain OEM knock sensitivity logic (not de-sensitising) to ensure ecu can correctly withdraw ignition timing if fuel quality or IATs become an issue.

We are also able to provide our calibrations via the MHD platform, for map switching functionality, or burbles etc.

Further gains can be acquired on this platform with aftermarket exhaust systems.

24/09/2026

Our 4WD Dyno is now operational.

After a lot of work behind the scenes, our new 4WD linked dyno is ready for use.

A special mention to my Dad John and to Alan for all their help building the cell and getting the shed ready. Couldn't have done it without them.

Bookings open now. Get in touch to get your car booked in on the 4WD rollers.

Josh

04/09/2026

Holiday Closure - 4th-11th September.

We will be closed for the above dates during this time for some well needed time off.

In the mean time, here is a sneak peak of our almost complete new dyno cell.

We look forward to completing the first few cars in our new workshop on our return.

Josh

22/07/2026

2025 Caddy +115hp +200nm.

Since the HW80 MD1 ECU’s have been unlocked we have been tuning various across the VAG family. With the 2.0TDI MK5 Caddys being commonly requested with some of them only being 75hp stock.

Being mechanically identical to the 150hp MK8 Golf’s significant gains can be unlocked, especially for those using these for towing etc.

Stock: 75hp & 230nm.
Tuned: 190hp & 432nm.

DPF & EGR both left intact with no detrimental effect on these emissions systems. Thanks to long term testing & monitoring on our own caddy.

As usual on these, the following was added:

- SCR Solution.
- Oil Pressure Fix.

On a side note:

We are still operating our 2WD dyno while we continue the construction of our new 4WD dyno cell, more updates to follow on this soon.

17/07/2026

MK8 GTD - 252hp & 485nm.

The first HW80 MD1CS004 we have Unlocked and Tuned.

Thanks to the extensive R&D we have done on our own shop Caddy we were finally able to see those countless hours pay off when it came to tuning this GTD running on the MD1CS004 ECU.

Fitted from factory with a GTD1752 ball bearing turbo, these units have been tried and tested across both OEM and hybrid retrofit applications. As expected, this turbo offered considerable headroom on this engine from the 200hp stock.

It’s worth noting compared to the previous generation EA288 GTD’s these have a considerably more robust fuel system and larger injectors keeping EGT’s sub 800 degrees even on prolonged pulls.

Finished off with complimentary add ons:

- Oil Pressure Fix.
- Adblue Solution.

DPF & EGR all left intact on this one, will be interesting to see how one of these will respond with a Downpipe as they gain popularity.

Address

Kilkeel

Website

http://mcbperformance.store/

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