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ECU Remapping Sale
We remap BMW and VAG cars on our own 4WD dyno in Birchwood, Warrington, about 14 miles from Sale town centre. Take the M60 from junction 7 and one junction of the M62, and you are here in around 25 minutes off-peak. Prices for Stage 1 custom dyno tuning start at £449.
Before You Book
Each can change the price or the length of the visit.
BMW and Audi cars built from around June 2020 to mid-2026 leave the factory with an encrypted ECU. It has to be opened before tuning, which on a BMW adds £100 and no extra time.
Gearbox software is priced separately: £325 for DSG, S tronic or xHP on an E or F series BMW, and £385 for xHP on G series and M cars, the X1 (F48) and 2 Series Tourers.
Stage 1 runs on standard hardware. Stage 2 is priced at your Stage 1 figure plus £150, or plus £200 on the £999 cars, and only suits a car with hardware such as a sports downpipe.
Locked ECUs
From around June 2020, BMW and Audi models have been built with encrypted engine ECUs. BMW and Alpina units are opened on our Birchwood bench as part of the tuning visit, adding £100 to the bill. Every unlock so far has succeeded, and our booking terms commit us to supply and code a replacement ECU at our cost should one ever fail during unlocking.
Locked Audi and VW Group ECUs give you a choice, and either way the unlock is billed on top of the tune. Opening one in-house adds £449 with no extra time; sending it away for unlocking adds £399 and means leaving the car for 3 to 4 working days. Three engine families have no in-house option: the 3.0 V6 TDI, the 2.9 or 3.0 V6 TFSI and the 4.0 V8. A 2022 Golf 1.5 TSI from our build blog was unlocked here and tuned the same day.
BMW and Audi cars built from June 2026 onwards carry a newer lock that can't currently be opened, so tuning isn't possible on them yet. ECU unlocking lists the engines we cover and every unlock price.
Gearbox Software
Our VAG TCU calibration raises the gearbox's torque limits and sharpens its shifts. It covers ten gearboxes, from the DQ200 and DQ250 to the DQ500, DL382 and ZF8, costs £325 and can be reversed.
On BMW automatics we install xHP, and DC is an official xHP Gold dealer, the top tier in the xHP dealer network. You pick from three stages, the install needs the car on site, and a phone app switches modes afterwards. Booking engine and gearbox together saves £125.
“Booked my BMW 435D for ECU stage 1 and xHP stage 3 with DC. Just shy of 400HP and 800NM torque. After 100 miles I went to see full potential and couldn't be happier. Also noticed +4MPG in city driving. I can't recommend DC Remapping enough!”
Expected Stage 1 Figures
Expected engine figures from our data, plus each car's gearbox software price. Results vary from car to car.
Two measured examples from our rollers: a Golf GTD Mk7.5 with DSG made 188.9 bhp standard and 230.4 bhp after Stage 1 and a TCU calibration, and an Audi S3 8Y rose from 315.0 to 388.0 bhp on Stage 1 alone. Each is one car, so the cards above remain our expected figures.
Sale To Birchwood
Times assume clear roads; the M60 at rush hour adds more.
Get on the M60 at junction 7, or junction 8 from Carrington, and keep heading north as far as junction 12. The M62 then takes you west for a single junction; leave at 11 and the A574 runs into Birchwood. Nothing on the way is tolled, and private cars pay no clean air charge anywhere in Greater Manchester. Timperley drivers should see our Altrincham page; Manchester and Salford have their own, and other areas are on car remapping near me.
Services
A map developed for your own engine, with Stage 2 available once parts like a sports downpipe are on.
Learn moreDiagnosis and solutions for diesel emissions faults and warning lights.
Learn moreLocked BMW ECUs opened on our own bench, and Audi or VW Group units opened here or sent away.
Learn moreThe Visit
We check the car's health before any software changes and take baseline runs. The calibration is then written while air-fuel ratio, boost and temperature are recorded under full load, and final runs plus a road test confirm it. You leave with the before and after graph, and the car can be put back to factory software at any time.
Stage 1 is normally a same-day job of 2 to 4 hours, including an in-house Audi unlock. If you'd rather stay, our lounge has Netflix, free Wi-Fi and hot or cold drinks.
A £50 deposit holds your slot and the rest is paid on the day by card or cash. 0% finance with Bumper is available. Paying in full online? Choose Klarna at checkout.
Sale FAQs
Around 25 minutes off-peak and about 14 miles. Join the M60 at junction 7, follow it to junction 12, then take the M62 west to junction 11. The M56 is not the quicker way from Sale.
Yes. TCU software for VAG dual-clutch and automatic gearboxes is £325, covers ten gearbox types and is fully reversible. Add it to an engine tune in the same booking and you save £125.
£325 covers most E and F series cars. G series cars, M cars, the X1 (F48) and the 2 Series Tourers are £385.
Yes, after unlocking, which is a separate charge. We can usually open an Audi ECU here in the same appointment for £449 alongside the tune, or send it away for £399 alongside the tune, which means the car stays with us for 3 to 4 working days. A few engines, such as the 2024-on 2.0 TDI, only go the second way; our ECU unlocking page has the details. Any Audi built from June 2026 is off limits for now, because its newer lock can't currently be opened.
A £449 engine tune plus gearbox software comes to £649 for VAG cars and most E or F series BMWs, or £709 for a G series BMW, an X1 (F48) or a 2 Series Tourer, after the £125 saving.
0% finance with Bumper is available. A £50 deposit holds your slot and the rest is paid on the day by card or cash. Paying in full online? Choose Klarna at checkout.
No. We tune at our Birchwood unit only, because the map is developed while the car runs on the dyno. A driveway visit can't give you a before and after measurement.
Before & After Figures
Real before and after power and torque for every BMW and VAG engine we tune, measured on our in-house 4WD dyno, with prices, gearbox options and the delivery curve for each one before you drive over from Sale.
Check Your Vehicle
Pick your make, model and engine for the expected Stage 1 and Stage 2 gains, your price, and book straight from the result.
Choose your make to begin.
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Use the checker above, or send your reg for a quote that covers the expected gains, any unlock and the gearbox price.
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