
Custom xHP gearbox (TCU) tune — firmer, faster shifts, raised torque limits, launch control and bespoke shift maps. Shaves tenths off your 0–60, 100–200 and quarter-mile times. Bought on its own or layered on a tuning package.
SamuelTuned Shop
Everything Samuel sells outside the configurator, flash hardware, plug-and-play kits, exhaust components, file portal credits, Bootmod3 licences, per-ECU unlocks and dyno vouchers. One cart, one Stripe checkout.
Worldwide shipping
UK fulfilment from Eccles · trackable to your VIN.
Klarna · Clearpay · Card
Split into 3 interest-free payments at checkout.
Hand-fulfilled by Samuel
No anonymous warehouse, every order goes through one tuner.
13 products
Flex fuel kits, sensors, flashing hardware.
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Custom xHP gearbox settings and TCU tunes — road or track.
Browse →6 products
Top up your account. Spend it on any future tune or revision.
Browse →9 products
Bootmod3 licences per engine, plus per-ECU unlocks.
Browse →4 products
Pre-pay your dyno sessions at our 117 Speed workshop.
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Custom xHP gearbox (TCU) tune — firmer, faster shifts, raised torque limits, launch control and bespoke shift maps. Shaves tenths off your 0–60, 100–200 and quarter-mile times. Bought on its own or layered on a tuning package.

Bootmod3 Basic kit, engine-bay 5/16" plug-and-play fittings, Continental flex sensor, CANBus harness. The everyday choice for stage 1 / stage 2 flex on B48 / B58 / S58.

Bootmod3 High Flow kit, unobstructed fuel-flow adapter, CANBus ECA, Continental flex sensor. The pick for stage-3 / hybrid-turbo builds that need the highest mass-flow ceiling.

Dedicated Autotuner slave hardware paired to your VIN. Ships ready-encoded for the protocols Samuel needs to read / write your ECU and TCU. One-off hardware purchase, no subscription.

High-flow sports catalytic downpipes for the S58. Bigger gains than the OEM cats while staying emissions-friendly enough for road use in most markets.

High-flow sports cat downpipes for B58 Gen 2 chassis. Significantly freer-flowing than the OEM cats while staying emissions-friendly enough for road use in most markets.

Top up your SamuelTuned file portal balance by £500. Use the balance against any future tune, revision or log review.

One-time ECU unlock keyed to your VIN. Required before any flash on locked control units. Manual service, Samuel preps the unlock package after payment.

A single dyno-tuning voucher at our 117 Speed workshop in Eccles. Redeem any time, book in directly with Samuel.

2 dyno-tuning vouchers, bundled rate (works out to £100 per session). Redeem at our 117 Speed workshop in Eccles, book in directly with Samuel.

3 dyno-tuning vouchers, bundled rate (works out to £83 per session). Redeem at our 117 Speed workshop in Eccles, book in directly with Samuel.

4 dyno-tuning vouchers, bundled rate (works out to £75 per session). Redeem at our 117 Speed workshop in Eccles, book in directly with Samuel.
Tuning platforms we flash