Case studies

Real cars. Real builds.
The stories behind the work.

Every project below was built in our Cambridge workshop. Filter by service, scroll through the before/afters, see the dyno gains and read the owner's own words.

12+

Documented builds

4.9★

Owner rating

100%

Reversible work

Remapping

AMG CLA 45 — Stage 1 with full custom calibration

Bench-read with Autotuner, custom-mapped on the M139 platform. Power up, throttle response sharpened, original file archived.

Vehicle: Mercedes-AMG CLA 45 (2020)
Owner: Cambridge owner · daily driver
Completed: Feb 2026 · Half day

Dyno result · Stage 1

Power

415 bhp478 bhp

+63 bhp

Torque

500 Nm575 Nm

+75 Nm

The brief

The owner wanted a sharper, more responsive car without losing reliability or daily comfort. We pulled the ECU, read on the bench, and produced a custom calibration tuned around UK 99-RON.

Scope of work

Pre-map health check & log
Bench read via Autotuner
Custom calibration on 99-RON
Road-test & verification log
Original file archived for life

"Night-and-day on throttle. It pulls cleaner from 3,000rpm and the gearbox actually keeps up. Felt safe the whole way through."

James W., Cambridge

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Remapping

BMW 530d — Stage 1 economy + torque

Daily 70-mile commute. Map focused on mid-range torque and a sensible MPG gain rather than peak headline figures.

Vehicle: BMW 530d F11 (2016)
Owner: Newmarket commuter
Completed: Jan 2026 · 90 min

Dyno result · Stage 1 economy

Power

254 bhp312 bhp

+58 bhp

Torque

560 Nm670 Nm

+110 Nm

The brief

Owner wanted overtaking confidence on the A14 and lower fuel bills. We targeted the 1,800–3,000rpm window where this engine lives most of the day.

Scope of work

KESS3 OBD read
Economy-focused map
Logged before/after MPG
12-month software warranty

"Picked up almost 6mpg on the commute and it overtakes like a different car. No regrets."

Daniel R., Newmarket

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Remapping

BMW 230i — Stage 2 with downpipe & intake

Hardware-supported tune. Catless downpipe and high-flow intake, mapped together for clean fuelling and a real-world torque shelf.

Vehicle: BMW 230i M Sport (2022)
Owner: Saffron Walden
Completed: Dec 2025 · Full day

Dyno result · Stage 2

Power

245 bhp338 bhp

+93 bhp

Torque

400 Nm510 Nm

+110 Nm

The brief

Customer-supplied bolt-ons fitted and mapped in one sitting. Full diagnostic pass with zero stored faults before handover.

Scope of work

Downpipe & intake fit
Bench tune via Autotuner
Knock + AFR live-logging
Full system scan, fault clear

"Sounds incredible and the way it now picks up in 3rd is mental. Properly mapped, no rough edges."

Alex T., Saffron Walden

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Remapping

VW Passat TDI — Stage 1 daily

Honest gain on the EA288 platform with a focus on driveability. No DPF or EGR delete — strictly legal road map.

Vehicle: VW Passat 2.0 TDI (2018)
Owner: Ely
Completed: Nov 2025 · 75 min

Dyno result · Stage 1

Power

148 bhp188 bhp

+40 bhp

Torque

340 Nm410 Nm

+70 Nm

The brief

Fleet driver doing 30,000 miles/year. Wanted a livelier car for motorway pulls without anything that would void the warranty repairs he relies on.

Scope of work

OBD read & write
DPF & EGR retained
Original file archived
12-month software warranty

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After

Before

Ambient lighting

Mercedes A-Class — 64-colour cabin retrofit

Full OEM-style ambient retrofit. Door cards, dash sweep, footwells and centre console — all driven from the factory MBUX menu.

Vehicle: Mercedes A-Class W177 (2021)
Owner: Cambridge
Completed: Mar 2026 · 2 days

The brief

Lower trim car that came without ambient lighting. Owner wanted the higher-spec experience without a dealer markup. Coded to look factory.

Scope of work

Door card fibre runs
Dash & console diffusers
Footwell pods
MBUX coding & menu integration

"Looks exactly like the AMG Line option from the showroom. Friends can't tell it wasn't factory."

Sophie M., Cambridge

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After

Before

Ambient lighting

Audi A3 — full RGB chase install

Reactive ambient that chases with throttle and music. App-controlled, with a calm OEM-style default scene for daily driving.

Vehicle: Audi A3 8Y (2023)
Owner: Huntingdon
Completed: Feb 2026 · 1.5 days

The brief

Owner wanted something that felt special at night but didn't look like a fairground in the day. Custom scenes tuned around their playlists.

Scope of work

Door, dash & footwell fibre
Bluetooth controller
Custom scene programming
OEM-fit, no exposed wiring

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After

Before

Starlights

BMW M340i — 600-star RGB headliner

Hand-woven 600-fibre headliner with RGB engine and four shooting stars. Original headliner preserved for full reversibility.

Vehicle: BMW M340i (2022)
Owner: St Neots
Completed: Jan 2026 · 2 days

The brief

Owner wanted a Rolls-Royce-style night cabin without losing factory finish. Headliner dropped, mapped, hand-woven over two days and refitted.

Scope of work

600 fibres hand-woven
4 shooting stars
RGB engine, app-controlled
Lifetime engine warranty

"Sat in the car the first night and just stared. Worth every penny."

Marcus B., St Neots

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Window tints

Audi RS3 — ceramic privacy tints

20% ceramic film on rear sides and screen. Heat rejection, zero purple fade, lifetime film warranty.

Vehicle: Audi RS3 8Y (2024)
Owner: Royston
Completed: Feb 2026 · Half day

The brief

Owner wanted privacy without the cheap aftermarket look. Precision-cut, edge-sealed, and finished without any visible lines or bubbles.

Scope of work

Pre-cut ceramic film
Edge-sealed install
Lifetime warranty
UK-legal balance

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Security

Range Rover Sport — Ghost II immobiliser

TASSA-approved Autowatch Ghost II install. Concealed, silent, PIN-coded via factory steering buttons.

Vehicle: Range Rover Sport (2023)
Owner: Cambridge
Completed: Mar 2026 · Half day

The brief

High-risk vehicle in a high-risk area. Insurer required TASSA-approved protection. Fitted, tested, certified — paperwork sent the same day.

Scope of work

Autowatch Ghost II
Concealed install
TASSA certification
Insurer paperwork

"Insurance accepted it within 24 hours and the premium dropped. Install was tidy and invisible."

Helen K., Cambridge

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After

Before

Ambient lighting

VW Golf MK7.5 — violet fibre cabin

Single-colour violet ambient retrofit. Subtle, no glare on the screen at night, clean OEM finish around the dash.

Vehicle: VW Golf MK7.5 (2019)
Owner: Cambridge
Completed: Dec 2025 · 1 day

The brief

Customer-supplied kit, professionally routed. We re-terminated the fibres for an even, factory-grade glow.

Scope of work

Door & dash fibre runs
Fibre re-termination
Hidden power feed
Switched ignition feed

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Dash cam

Tesla Model Y — 4K front & rear dash cam

Thinkware U3000 hard-wired with parking mode. Clean routing, hidden behind the headliner and A-pillar trims.

Vehicle: Tesla Model Y (2024)
Owner: Cambridge
Completed: Feb 2026 · 2 hours

The brief

Tesla's built-in cameras are decent but the owner wanted true 4K and parking mode. Routed through the trim without a single visible cable.

Scope of work

Thinkware U3000 4K
Parking-mode hardwire
Hidden routing
32-day SD card

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After

Before

Ambient lighting

Mercedes A-Class — RGB dash sweep retrofit

Pre-facelift A-Class with a custom RGB dash sweep. Mounted behind a new diffuser strip, OEM look in the day.

Vehicle: Mercedes A-Class W176 (2017)
Owner: Cambridge
Completed: Jan 2026 · 1 day

The brief

Older platform with no factory ambient option. We modelled and 3D-printed a diffuser to match the original dash trim.

Scope of work

3D-printed diffuser
RGB fibre core
Switched feed + dim sensor
Bluetooth controller

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Real cars. Real builds.The stories behind the work.

AMG CLA 45 — Stage 1 with full custom calibration

BMW 530d — Stage 1 economy + torque

BMW 230i — Stage 2 with downpipe & intake

VW Passat TDI — Stage 1 daily

Mercedes A-Class — 64-colour cabin retrofit

Audi A3 — full RGB chase install

BMW M340i — 600-star RGB headliner

Audi RS3 — ceramic privacy tints

Range Rover Sport — Ghost II immobiliser

VW Golf MK7.5 — violet fibre cabin

Tesla Model Y — 4K front & rear dash cam

Mercedes A-Class — RGB dash sweep retrofit

Want a write-up like this on your build?

Real cars. Real builds.
The stories behind the work.