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pink audi said:
shouldn't you start a few engine 'Tweeks' like exhaust and filter before undertaking a remap?
can you re-remap?
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It depends on what you want out of the car. Some tuners do offer a true remap - they can map your ECU in line with what modifications you have. Being more specific, if your car is fitted with an induction kit and exhaust, the car will in theory be pulling in more air, and pushing more out, so they can map the mixture a bit richer to compensate. At the end of the day though, you will not see that much of a benefit power-wise to mapping specifically like this, unless you're talking 300+BHP. It may be beneficial to the overall balance of the engine though, as it should ensure that all non-standard components are working in harmony with the rest of the engine.
Many tuners offer a 'remap' that is no more of a remap than a chip: the values for boost, timing, and igntion are predetermined, and therefore do not take into account any modifications prior to the code change. Adding modifications like an induction kit or high flow filter after the 'remap' would be no more beneficial nor detrimental than adding the mods beforehand.
Being realistic though, if it came down to the situation of "Right I've got 600 quid to spend. I can afford to get a remap, or I can afford to spend the money on an exhaust and an induction kit" then I would personally favour going straight for the remap, whether it be a true remap or a generic chip. Why? Because an exhaust and induction kit will NEVER give gains anywhere near as good as remapping a turbocharged car. Granted, if you can afford the lot then by all means upgrade the induction kit and exhaust, then get a remap done that realises the potential of the mods.
If you want a nicer noise, go for the induction or exhaust. If you want a better car, go for a remap.
Drew.