Does the C-max even have an intercooler though? If not that would be stage 2 and quite a bit of work to get it to 200hp reliably. 200hp (and quite a lot of torque) is what the Fiesta ST runs with that engine, I very much doubt it's exactly the same. Then there is the question of the gearbox and clutch in a family bus being able to handle the power. There's more to it than just being the same basic block.
A Golf R runs almost 300hp and has the "same" 2.0 engine found in many VAG cars. But if you mapped a base spec 2.0 to 300hp it would explode
A lot of BS in there. Be careful what you read on the internet. Below included.
I have had many a remapped car. And fully intend to remap my Edition 30 once I've finished all the basic stuff I want to do before mapping it (mostly brakes, bushes and suspension). But for most cars, if I were to map them, I would just do the stage 1 map and no more. And, depending on the age / health of the car, budget for a clutch / flywheel at some point (this is one of the things I probably plan on doing before mapping the ED30).
I have mapped a few cars, a few 1.8T mk4 Golfs, my old Passat 1.9 TDI, an Audi A3 2.0 TDI, my Alhambra 2.0 TDI and my 335d. The 335d, being an auto, didn't need a clutch change. Everything else, being 8+ years old at the time, and 80k+ miles (most over 100k when mapped), all required a clutch change shortly after mapping them. Only one of the 1.8T's got an uprated clutch after mapping, but there was a significant increase in torque on that one due to the extent of the modifications.
But, in every single case, the fuel economy remained the same, or improved slightly, but there was obvious, distinct increases in performance. Night and day increases. And in every case it was well worth the cost of map + clutch. Assuming you keep the car long enough afterwards.
Supporting modifications can be nice, but are really not required with generic stage one maps. They are designed for stock cars. More "hardcore" maps may require other parts fitted, such as intakes, exhausts, intercoolers etc... but in general, it is rarely worth going beyong the sufficient gains that can be had from a stage one map. For example, on my Edition 30, a stage one map takes the stock car from 230 BHP to 300 BHP for the cost of a £350 map (roughly). However, if I uprate the exhaust, intake, intercooler, high pressure fuel pump and pressure release valve, then remap, the car can then be mapped to around 340-360 BHP. Whilst this might be worth it, there is significant investment required to gather and fit all these extras. Somewhere around £2500, plus the map. So there is less to gain for MUCH more money. Of course, the car will be a total weapon after. I am not taking my ED30 that far. But it does already have intake, intercooler and cat back exhaust (mostly fitted before I bought it), so it would be rude not to at least put a decat on before mapping it up.
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