Hyundai Santa Fe CM

Manufacturers de-tune engines at the factory to cope with poor fuel quality in some parts of the world and to meet strict emissions rules — so there’s real performance left on the table.

Our maps are built by powertrain engineers to unlock that reserve while staying inside your engine, turbo and clutch tolerances: software optimisation, same hardware. And it reverses to stock anytime.

No — an interrupted flash can’t brick your ECU. Flashing is all-or-nothing: if the write is cut short — a flat battery, a dropped Bluetooth link, the dongle pulled out — the ECU won’t run a half-written program. Instead it stays in programming mode (its bootloader), waiting for a complete file.

While it’s in that state the vehicle won’t start, which can look alarming but is completely safe: nothing is damaged and nothing is lost. You simply reconnect and re-run the flash — SmartFlash is engineered to recover from any state, finish writing, and the engine starts normally.

As a safety net, we also keep your factory file on hand, so you can always write the vehicle back to stock.

We’ve built the solution so that, once you flash back to stock, it’s usually not visible to a manufacturer — though OEM tools evolve, so we can’t promise that forever.

And to void a warranty on tuning grounds, a manufacturer has to actually prove the vehicle was tuned. A tune can still affect warranty cover, so it’s worth knowing your maker’s terms.

It depends on your insurer and country, so we can’t give one global answer. Remember the tune is fully reversible to stock.

It depends on your country and how you use the vehicle — laws differ across the markets we serve, so you’re responsible for checking your local rules. Either way, you can always flash back to stock.

It can, as long as the engine is healthy and well-maintained — tuning rewards a vehicle in good condition, it won’t revive a tired one. Sort any wear or due service first.

Yes. Flashing draws power for several minutes and the engine can’t be running during programming, so a healthy battery matters — and if yours isn’t in great shape, connect a charger. The app walks you through it; just don’t interrupt the process.

Yes. Your original file is stored, so you can flash to stock and back to your tune in a few minutes from the app, as often as you like — handy for a service, an MOT, or selling the vehicle.

Yes — never a generic file. Every map starts from a calibration developed on the dyno for your engine, by powertrain engineers.

You pick the stage and options, and it’s then adapted to your exact ECU software version.

It’s the same kind of calibration a good workshop would load — built by powertrain engineers — but without the day without your vehicle or the workshop price, and you install it yourself from your phone.

Unlike most workshop remaps, it’s fully reversible anytime.

From dyno data for your engine family. Where we show a modelled curve, it’s labelled as such — what a healthy vehicle on the right fuel should make; your exact numbers depend on your vehicle’s condition, fuel and any hardware.

On automatic and dual-clutch boxes it sharpens and firms up the shifts, raises the torque limiter to hold the new power, quickens kickdown and launch, and removes factory shift restrictions.

It’s a separate optimization from the engine map.

Not necessarily. Driven the same way — especially cruising — many customers see similar or even slightly better economy, because the engine works less for the same result.

Use the extra power often, though, and it’ll drink more, as you’d expect.

It depends on your ECU. Where we can fully read its current memory, we can back up an existing tune as a separate map you can keep and install whenever you like.

But our own tuning always starts from a clean factory base — we won’t graft options onto someone else’s map, since we can’t vouch for that work.

So if you have a Stage 1 from another tuner, we can save it for you — provided, as above, that the ECU’s memory can be read; but to get Stage 1 + Pops & Bangs as one of our maps, you’d take Stage 1 from us too (we can always build Pops & Bangs as its own map).

Some do. Stage 2 needs an exhaust change — on diesels the DPF must be physically removed, on petrols the catalytic converter (and the GPF if fitted). The configurator flags this when you pick Stage 2.

Stage 1 is software-only.

Anytime. Add any stage or option later for its normal price — you won’t re-pay for the vehicle you’ve already set up — then a €49 build-or-update fee to roll it into a new map or update your current one.

Yes. We offer a transfer of your maps to the new owner's account, for the same vehicle (same VIN), for €99. Everything you had bought for that vehicle becomes available to them — they'll just need an OBD dongle to install it.

If you prefer, restore the vehicle to stock before the sale — free, a few minutes in the app. Either way, remember to tell the buyer if the vehicle is sold tuned.

Yes. Everything you buy stays in your toolbox, and you can build several map variants from it — one with Pops & Bangs and one without, an everyday map and a full-power one.

There’s no on-the-fly switching in the app yet (it’s on the roadmap), so you switch by reflashing — a few minutes. Your first map is included; each extra is a €49 build.

Once you’ve registered your vehicle in the app, most tunes are ready within hours — never more than one working day. You’ll be notified when your tune is ready to install.

Dongles ship from our EU warehouse within one working day — same day if you order before midday — and arrive in 1 to 5 days depending on your country and whether you pick standard or express.

Exact delivery times show at checkout.

Anywhere in the EU.

Yes. The dongle is just the plug-in interface between the app and your vehicle — it isn’t tied to one vehicle, so a single dongle works on any vehicle you own.

You buy it once; each vehicle has its own tune.

Yes. We stand behind the calibration itself, and if your manufacturer later pushes a software update to your vehicle, we re-do your tune for free.

Every order also comes with our 30-day money-back guarantee, and the tune is always reversible.

Within 30 days, flash your vehicle back to stock and send the dongle back to us in its original box and condition.

Once we’ve confirmed the vehicle is on its factory file and the dongle has arrived, we issue your refund.