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★ 5.0 on Google · 240+ 5-star reviews · 10,000+ vehicles tuned · 14+ years experience · In-house 4WD dyno · 0% finance available · BMW & VAG specialists · Warrington · ★ 5.0 on Google · 240+ 5-star reviews · 10,000+ vehicles tuned · 14+ years experience · In-house 4WD dyno · 0% finance available · BMW & VAG specialists · Warrington ·
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HomeTuning Figures › BMW 6-Series Gran Coupe

BMW Tuning

BMW 6-Series Gran Coupe Remap Figures

Before and after power and torque for every BMW 6-Series Gran Coupe engine we tune, measured on our in-house 4WD dyno. Every map is written for your exact car and is fully reversible.

F06 - 2013 -> 2018

EngineStandardStage 1Stage 2Price
640dDiesel313 bhp
630 Nm
390 bhp+77
780 Nm+150
400 bhp+87
810 Nm+180
£449Stage 2 £599+ gearbox £325
S1 + gearbox £649 ›
S2 + gearbox £799 ›
Book
640iPetrol320 bhp
450 Nm
365 bhp+45
520 Nm+70
£449+ gearbox £325
S1 + gearbox £649 ›
Book
650i ValvetronicPetrol449 bhp
650 Nm
540 bhp+91
780 Nm+130
£449+ gearbox £325
S1 + gearbox £649 ›
Book

Stage 2 Diesel supporting mods: DPF delete (off-road use only) + uprated intercooler.

Spread the cost. From £74.84/mo over 6 months at 0% APR — interest free. Or 3 interest-free payments of £149.67 with Klarna. How finance works ›
Book engine and gearbox tuning together and save £125.

BMW 6-Series Gran Coupe remapping questions

What gains can I expect from Stage 1 on a BMW 6-Series Gran Coupe?
It depends which engine you have. Across the 3 BMW 6-Series Gran Coupe engines we tune, the 640d sees the biggest Stage 1 gain — 313bhp to 390bhp and 630Nm to 780Nm, up 77bhp. Every figure on this page is for that exact engine.
How much does it cost to remap a BMW 6-Series Gran Coupe?
Stage 1 custom dyno tuning on a BMW 6-Series Gran Coupe starts at £449 inc VAT, and gearbox tuning is £325. Book both together and you save £125. You can spread it over 6 months at 0%, or pay in 3 interest-free instalments with Klarna.
Does my BMW 6-Series Gran Coupe need its ECU unlocking?
If it was built from around June 2020 onwards, yes — those ECUs are locked from the factory and have to be unlocked before anything can be written. We do it in-house. Check your registration and we will tell you straight away whether yours is affected. Check if your ECU is locked ›
What does Stage 2 need on a BMW 6-Series Gran Coupe?
It depends on fuel. Diesels need a DPF delete (off-road use only) and an uprated intercooler; petrols need a decat or sports cat downpipe plus an uprated intercooler. Stage 2 cannot be mapped safely on a standard car, so if yours has no supporting hardware we will fit Stage 1 instead.
Will remapping my BMW 6-Series Gran Coupe affect my warranty or insurance?
You will need to tell your insurer, as with any modification, and it can affect a remaining manufacturer warranty. Because we save your original software first, the BMW 6-Series Gran Coupe can be put back to standard at any point.
How long does it take, and is it reversible?
Allow roughly two hours for Stage 1, or a half-day if the ECU needs unlocking first. Everything is reversible: we store your original software so the BMW 6-Series Gran Coupe can go back to stock on request.

Other BMW models

Whichever you pick, the total carries through to checkout — pay in full by card, Apple Pay or Klarna (3 interest-free payments), or secure the slot with a £50 deposit. Figures are typical results for a healthy, standard vehicle on our dyno. Your car’s actual output depends on its condition, fuel quality and any supporting modifications. Prices shown are for Stage 1 custom dyno tuning inc VAT; locked ECUs (most BMW and Audi registered from mid-2020) carry an additional unlocking charge, confirmed when you book.