Tuning FAQ

Frequently asked Questions

Using Llandow Tuning

Why should I pick LLANDOW TUNING over another tuning firm?
Quite simply becuase we are the only company operating in Wales that have been offering customer tuning services since 2004.
Every other remap/tuner with a location has at some point been operating as a "mobile remapper" / "file slinger" installing files on behalf of remote companies with nothing remotly custom about the tune.
Whilst there were others offering tuning before us in 2004 in Wales, they don't still exist. Indeed the competitors that have been around nearly as long as us (of which there are two) one is no longer owned by the same people thus the quality is gone through the floor and they have resorted to being a reseller to one of the UKs larger second rate tuner.
Bottom line:
  • We believe in Quality before Quanity
  • We are the longest established
  • We are completely independent
  • ALL our equipment is Master equipment and we have NEVER owned or had in our POSSESION any equipment from another tuner let alone acted as someone other tuners agent (Nobody else can claim that in Wales)
  • We've tuned more car in Wales than any other Welsh based tuner
  • We believe that if you come for a free consulation you'll agree with us, that we are the best in Wales
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Why should I avoid a Mobile Tuner/Remapper
Mobile Tuners are the sort of UPVC sales men of the Automotive Business, possibly lower than a Used Car Sales man in the pecking order of whom to trust.
The questions you need to ask yourself is:-
  • Why doesn't the Mobile Remapper have a workshop?
  • When it goes wrong (and it often does), where is the vehicle to be repaired and by whom?
  • If the guy bricks the ECU, will you be able to deal with the excuses or just let him disappear?
  • Over 90% of Mobile tuner aren't tuners, aren't mechanics, aren't technicans but are simply people that have signed up to a reseller scheme, with a car, a laptop and some money to invest in some tooling. Do you really want that someone playing with your car?
  • A mobile tuner cannot perform a custom tune to the vehicle despite all their false promises. How on earth are they to develop and test something custom at the side of the road? The file they load will be from whoever their tool is slaved too. The price might be good, but do you really think it will work as well as a fully developed tune/calibration?

Leasing and Warraty Questions

Will Tuning my vehicle invalidate my warranty?
Yes. There are no ifs or buts about it. If you modify your vehicle, your manufacturer warranty could be null and void. But lets say you have a "tune" on your engine and your exhaust falls off. That is still going to be covered. The issue you will have is what is and what is not is open to debate.
Can I tune a leased vehicle?
If you want to tune a leased vehicle, remember you are not the legal owner.
You will need to return the vehicle to stock condition prior to handing it back or purchase it outright at the end of the lease.
It is well reported by the press that BMW sends customers bills for immeadetate payment to clear outstanding finance on a vehicle when they discover it has been modified.
Can the Dealer refuse to work on a tuned car?
Yes. And honestly they do often. If you modify a vehicle with a tune and the dealer finds out, they might just simply turn you away as they don't want the hassle of warranty claims or liability that might arise from your modifications.
Should I tell my insurer?
Yes. You should tell them or you risk any modifications resulting in your insurance being invalid. That said, we've worked with many insurance inspections and their opinion can be boiled down to "When is a modification, a modification?"
i.e. You've put a set of cheap tyres on the car, that aren't approved?
Maybe you've installed a steering wheel cover, is that a modication?
You've installed different alloy wheels or changed their colour?
I think the point is, a small remap to gain a few HP or sticking a turbo on the car or making a V6 into V12 may have different impacts.
What about if your car has been modified before you bought it? Does that invalidte your insurance too?
In any case, it is probably best to ask your insurer what they think.
Can I hide my tune from the dealer?
If you want to tune your vehicle whilst it is under warranty or leased then there are a number of approachs. The most important is to avoid going to dealer where possible. Avoid software updates online and simply remove the software before any visits to the dealer for warranty work.
This is perhaps another reason to go to an established tuner rather than a chap with a laptop on a car park.

Tuning Questions

Can the Tune/Map be removed?
Yes, we can remove any map we have installed for free with little notice. We recommend you remove any map from the vehicle prior to visiting the dealer. They might refuse to work on your car.
Will Tuning my Car damage it?
Not if it is tuned correctly. This is the whole reason a dyno exisits. To check and test the tune installed on a vehicle. Whilst we and our partners have developed thousands of tunes on every kind of car possible, can somebody with a laptop that knows nothing about how a car really works offer you the same guarantee?
It is also worth checking the "Will My Car wear out quicker?" question as there are other issues to consider.
Will My Car wear out quicker?
Yes. Some people will tell you otherwise. I'm afraid they are mistaken. If you tune a vehicle to obtain more power from it, then it stands to reason it will wear out quicker. Is this something to be worried about? Not really.
Simply perform more oil changes and expect induction hoses to be under more pressure
Stage 1, 2 and 3 explained
  • Stage 1 is the basic level of Tuning a vehicle where no modifications have been made to any engine system. It is completly safe and will not require you to change how you look after the vehicle
  • Stage 1 + is the next level, typically you need to modify the exhaust system to get to Stage 1+. Modiciations that enable a Stage 1+ map include DPF and EGR Deletes.
  • Stage 2 capablity is reached when you add inducation modifications like updated Intercoolers, Air Filters, Induction Pipes etc
  • Stage 3 incorporates everything above stage 2. The kind of modifcations range from larger turbos to a wild cams. It really means VERY CUSTOM.
Can I delete an EGR without modify my DPF?
We get this question a lot. As there are a lot of "tuners" that tell customers you can delete the EGR valve with no effect on the DPF. They couldn't be more wrong. Yes you can delete the EGR and leave the DPF, but the DPF is going to block up very quickly when it discovers the emission system is working like it should. Lets note forget the EGR lowers emissions at idle. Deleting it is going to increase the soot load on the DPF and it WILL block.
If you've been to a tuner that has told you otherwise, run to the hills.
How long does a Stage 1 Remap take to install?
We ask that you bring the car to us in the morning and it should be ready by 5PM. Naturally we need to examine the car, communicaiton with the Engine ECU to determine any faults and then we need to test the map once its been installed. Sometimes it can run over to the next day, should this happen we will let you know.
We offer free BMW Courtesy cars to enable you to get around whilst we work on your car.

Tuning Boxes

What is a Tuning box?
They are devices installed on one or two sensors connected between the Engine and Engine ECU to fool the ECU into doing something to typically add more fuel.
The Tuning Box company claim more power than a Remap
Quite simply, they are selling snakeoil. The box does nothing but tricks the ECU into overfueling. Sometimes they include pretty Apps to control some of the settings from a Mobile. But rest assured their efforts are all hogwash as are their promises.

Will a Tune/Remap deliver more power than a tuning box?
Yes, it will offer substabically more power and better fuel economy as we modify maps that effect a lot more than simply the fuel pressure.
If you have a tuning box connected to the fuel rail we will offer you a full money back guarantee that we can improve the performance of the car using a remap/tune. How about if we don't get more power than the tuning box we won't charge you?
Are tuning boxes safe?
No they block your DPF, make you use more fuel and will damage over time your injectors, fuel rail, pressure sensors and high pressure fuel pump.
If you have one fitted, rip it out.

Putting Facts back in to Tuning

What is Tuning vs a Remaping vs Chipping
  • Tuning is simply the modification of a vehicles engine to perform better
  • Remapping is a term used to describe modifying a Map or Curve on the Engine ECU to perform some effect. Sometimes more power, indeed sometimes less.
  • Chipping or Chip Tuning is a term from an older age where we had to remove the old PROM or EPROM from the vehicle modify it and place it back in, I suppose the term started in the Eighties with the advent of ECU's and all those firms supplying in "super chips"
What is wrong with using a Agent/Mobile Remapper?
The truth is, they don't have a clue what they are doing. Yes they can be good snake oil salesmen and talk the talk. Yes they can load on to your car a "remap" from some guy the other side of the internet but you must ask yourself a number of questions.
  • Is it a £4 bottle of plonk or a £20 bottle?
  • How has the file been tested?
  • What does the person installing the remap know about cars? Can he perform an initial inspection to ensure there isn't some underlaying issue with the car?
  • If it all goes wrong and he bricks the ECU, what is he going to do about it? Does he have the equipment to fix it? Is he simply going to do a runner? Or might he just pass the buck and blame the car. Don't worry if this happens call us, we fix lots of "tuned" cars
Why can't other tuners agents "Custom Tune" my car
Quite simply becuase they are using "Salve Tools". The tools used to read and write to the Engine ECU come in two forms "Master" and "Slave". Slave tools encrypt the ECU contents which then needs to be sent off to the "Master" tool holder. Therefore the person doing the tune cannot modify the contents becuase they don't have access to the contents.
Naturally we have master tooling so we modify each and every files inhouse.
Does my car need to go on a Dyno?
No. Not for stage 1. But the tune must be developed on a map on an identicle car.
Do we test every car on the dyno? No. There is no need. But you should at the very least performa test drive and using the dealer tooling find out if any faults have been logged
Does Remap.Wales have dealer tooling?
Yes we have dealer tooling for nearly every make and model of vehicle. We aren't talking about "snap on" or "autel" or "launch" do everything tools but the real deal. BMW/Merc/VAG. Ford, Jaguar, Land Rover, Vauxhal, PSA/Citroen, Fiat, Maserati, Ferrari, GM, Nissan, Subaru, Honda. You name it we have it.

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