https://www.mtechtuning.co.uk/, https://www.mtechtuning.co.uk/gains-checker

MTechTuning, Bristol (2026)

25/05/2026

Land Rover Defender P400e Exhaust Software Solutions

This Defender P400e received bespoke software adjustments to support aftermarket exhaust modifications and resolve compatibility issues with the factory emissions system.

The calibration work included OPF/GPF and rear O2 related software solutions, allowing the vehicle to operate correctly following hardware changes while maintaining smooth OEM-style drivability and refinement.

Unlike many vehicles, this MED17.9.9 ECU required bench access rather than standard OBD programming to complete the work safely and correctly.

This vehicle runs a Bosch MED17.9.9 ECU and was programmed using AutoTuner tools.

Included:
• OPF/GPF solution
• Rear O2 solution
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after programming.

Fully mobile service covering North Somerset, Bristol & South Wales.

For Land Rover Defender tuning, P400e ECU programming, OPF/GPF solutions, exhaust-related software calibration and diagnostic work, get in touch or check your vehicle using our BHP Checker.

Finance options available.

13/05/2026

BMW X5 30d 286hp Stage 1 ECU & Gearbox Tune

Engine Tune:

Stock 286 hp / 650 Nm
Stage 1 330 hp / 720 Nm
+44 hp / +70 Nm

The F15 X5 30d already delivers strong torque and effortless cruising ability from factory, but the calibration leaves room in throttle response and mid-range delivery. This Stage 1 setup sharpens that response and improves overall drivability, giving the vehicle a more immediate and responsive feel without losing the smooth OEM character the X5 suits so well.

This vehicle also received a gearbox calibration to better suit the increased torque output, featuring optimised D & S shift points for improved acceleration, faster shifts overall, quicker paddle response, optimised torque converter lockup, raised torque limits to match the tuned engine, and gear display activation. The result is a smoother and more responsive driving experience while retaining OEM refinement.

This vehicle runs a Bosch MD1CP002 ECU and was calibrated safely via AutoTuner OBD.

Included:
• Speed limiter removed
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains with our BHP Checker or message to get booked in.

Finance options available.

05/05/2026

Mercedes CLK 350 272hp Stage 1 ECU Tune

Stock 272 hp / 350 Nm
Stage 1 292 hp / 375 Nm
+20 hp / +25 Nm

The CLK 350 delivers smooth, linear performance from factory, but the calibration is slightly restrained, particularly in how it responds under load. This Stage 1 setup refines that delivery, making better use of the engine’s natural characteristics, with improved throttle response and a cleaner, more consistent power delivery across the rev range.

The car feels more eager without becoming aggressive, with a subtle but noticeable lift in overall performance. The result is a more responsive and composed driving experience, while maintaining the original OEM feel—just with a higher level of performance available safely.

This vehicle runs a Bosch ME9.7 ECU and was calibrated safely via AutoTuner OBD.

Included:
• Speed limiter removed
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains with our BHP Checker or message to get booked in.

Finance options available.

01/05/2026

BMW 330d 258hp Stage 1 ECU Tune

Stock 258 hp / 560 Nm
Stage 1 310 hp / 650 Nm
+52 hp / +90 Nm

The 330d is well known for its strong torque delivery, but from factory the calibration leaves some performance on the table, especially higher up the rev range. This Stage 1 setup refines how the engine responds, making better use of the available power.

Power delivery is more progressive and controlled, with a noticeable improvement in how the car pulls under load. Mid-range performance is stronger, and the engine carries that momentum more cleanly through to the top end.

Overall, the vehicle feels sharper and more responsive, with the original OEM driving characteristics maintained, just with a higher level of performance available safely.

This vehicle runs a Bosch EDC17C50 ECU and was calibrated safely via AutoTuner OBD.

Included:
• EGR solution
• Speed limiter removed
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains with our BHP Checker or message to get booked in.

Finance options available.

29/04/2026

Audi A4 2.0 TDI 136hp Stage 1 ECU Tune

Stock 136 hp / 320 Nm
Stage 1 185 hp / 410 Nm
+49 hp / +90 Nm

The 2.0 TDI engine in the A4 is factory-limited, particularly through the mid-range. This Stage 1 calibration focuses on releasing that restriction, improving how the engine delivers power across the rev range.

Torque is introduced earlier and carried more consistently, resulting in smoother acceleration and improved drivability in everyday conditions. Throttle response is more immediate, and the vehicle feels more composed under load.

The result is a more refined, capable setup while maintaining OEM reliability and characteristics.

This vehicle runs a Bosch EDC17C64 ECU and was calibrated safely via AutoTuner OBD.

Included:
• Speed limiter removed
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset and South Wales.

Check your gains with our BHP Checker or message to get booked in.

Finance options available.

23/04/2026

Renault Twingo RS Stage 1 Engine Tune

Stock – 133 hp / 160 Nm
Stage 1 – 145 hp / 180 Nm
+12 hp / +20 Nm

This Stage 1 setup focuses on improving throttle response and optimising torque delivery across the usable rev range, without compromising reliability or drivability.

Noticeably sharper on initial throttle input, with stronger mid-range pull and smoother power delivery throughout. Maintains an OEM-like feel, just more responsive and usable in everyday driving.

This vehicle runs a Siemens/Continental SIM32 ECU and was calibrated via AutoTuner OBD.

Included:
• Speed limiter removed
• Original ECU file securely stored

Dealer-level diagnostics carried out before and after tuning to ensure vehicle health and consistency.

Fully mobile service covering North Somerset & South Wales.

Message to book or check your vehicle’s potential using our BHP Checker.

19/04/2026

Suzuki Swift Sport 1.6 VVT Stage 1 Engine Tune

Small car, but wakes up nicely with the right calibration.

Stock – 136 hp / 160 Nm
Stage 1 – 150 hp / 175 Nm
+14 hp / +15 Nm

Stage 1 setup focused on sharpening throttle response and improving how the power comes in, rather than chasing big headline numbers.

Feels more eager from low RPM, pulls cleaner through the mid-range. Makes everyday driving a lot more responsive without losing that OEM feel.

This one runs a Bosch ME17.9.51 ECU, tuned via AutoTuner OBD.

Included:
• DTC delete (P0420)
• Decat / O2 solution
• Pops & bangs (on request)
• Speed limiter removed
• Original ECU file stored

Dealer-level diagnostics carried out before and after.

Fully mobile service covering North Somerset & South Wales.

Drop me a message to get booked in or check your gains with the BHP Checker.

08/04/2026

BMW 535d Stage 2 ECU Tune

Serious torque. Relentless pull. Proper twin-turbo diesel performance unlocked.

Stock – 286 hp / 580 Nm
Stage 2 – 360 hp / 700 Nm
+74 hp / +120 Nm

Stage 2 calibration for the 535d focusing on increased boost, fuelling and torque delivery across the full rev range.

Noticeably stronger from low RPM, with a much more consistent pull through the mid-range and top end. Gear changes require less throttle input, and the car carries speed more efficiently under load.

This vehicle runs a Bosch EDC16CP35 ECU and was calibrated via AutoTuner OBD.

Included:
• DPF solution
• DTC delete
• Speed limiter removed
• Original ECU file securely stored

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains instantly with our BHP Checker or message to book. Finance options available.

04/04/2026

BMW 116d Stage 1 ECU Tune

More usable torque. Stronger pull. Exactly how it should’ve left factory.

Stock – 116 hp / 260 Nm
Stage 1 – 150 hp / 320 Nm
+34 hp / +60 Nm

The 116d is built for efficiency, but in standard form it can feel a bit underpowered, especially through the mid-range. This Stage 1 calibration transforms how the car drives, giving it the torque it needs without compromising reliability.

Torque comes in earlier and carries much better through the rev range, making everyday driving smoother and far less effort. Overtakes are easier, throttle response is sharper, and the car feels more capable overall.

Perfect for daily use. More responsive, more flexible, and far more enjoyable behind the wheel.

This vehicle runs a Bosch EDC17C41 ECU and was safely calibrated via AutoTuner OBD.

Included:
• Speed limiter removed
• Original ECU file securely stored

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains instantly with our BHP Checker or message to book. Finance options available.

30/03/2026

Mercedes GLC 43 AMG Stage 1 ECU Tune

More urgency. Stronger mid-range. Proper AMG performance unlocked.

Stock – 390 hp / 520 Nm
Stage 1 – 420 hp / 620 Nm
+30 hp / +100 Nm

The GLC 43 already delivers strong performance, but from factory it’s slightly held back through the mid-range. This Stage 1 calibration sharpens throttle response and unlocks a much harder pull where it matters most.

Torque comes in earlier and carries through the rev range with far more intent. Acceleration feels more aggressive, overtakes are effortless, and the whole car feels lighter and more responsive under load.

It keeps the smooth AMG character, just with the edge it should’ve had from factory.

This vehicle runs a Bosch MED17.7.3.1 ECU and was calibrated safely via AutoTuner OBD.

Included:
• Speed limiter removed
• Sports display updated
• Original ECU file securely backed up

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Check your gains instantly with our BHP Checker or message to book. Finance options available.

20/03/2026

BMW 320d Stage 1 ECU Tune

Sharper response. Stronger pull. Exactly how it should’ve left factory.

Stock – 184 hp / 380 Nm
Stage 1 – 220 hp / 440 Nm
+36 hp / +60 Nm

The 320d is known for its efficiency, but it can feel a bit restrained in standard form. This Stage 1 calibration frees up the engine, giving it a much more usable powerband without sacrificing refinement.

Torque comes in earlier and builds more progressively, making the car feel lighter on its feet. Overtakes require less effort, and the mid-range now delivers properly instead of tapering off too soon.

Perfect for daily driving. More responsive, more capable, and more enjoyable.

This vehicle runs a Bosch EDC17C41 ECU and was safely calibrated via AutoTuner OBD.

Included:
• EGR delete
• Speed limiter removed
• Original ECU file securely stored

Dealer-level diagnostics carried out before and after tuning.

Fully mobile service covering North Somerset & South Wales.

Message us to check compatibility or secure your booking.

Finance options available.

MTechTuning

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