Home Forums Performance Electronics/ECU Mountune 375 Kit fitted Reply To: Mountune 375 Kit fitted



UK - England

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Here you go – copied….apologies for loss of some formatting…

As promised to UK Jon, I thought I’d try and post up a quick review of my thoughts on the FPM375 kit after having it installed last Thursday at Mountune HQ by Fred & Co.

To offer a bit of background, I’ve come from a 470bhp Impreza (lairy for a daily), then a 420bhp v8 M3 (lovely car, but less involving to drive), so always knew the Focus would be down on power, but it felt like a good compromise between the two (excitement Vs practicality Vs cost).  I also felt on the test drives that with a decent map it should have more to give and feel a bit more lively so the FPM375 was always on the cards from the moment I put the deposit down.  I also had a dyno run beforehand for a base figure and will see what the difference is when I go back in a week or so.
I wanted to wait a few days for any placebo effects to subside and write a more focused (sorry) view on how it’s improved the car, so here goes.

  • You retain the manufacturer warranty
  • The difference is much more obvious in normal than sport; the car feels less lazy than before and you don’t necessarily need to switch into sport to get the car to be more responsive; it still makes a difference of course, and there is also now a little more urgency than previously felt in sport, particularly at the bottom and toward the top of the rev range.
  • It’s not hugely explosive or thump you in the back like turbo cars of the noughties; linear delivery with a little more urgency is probably the best way to sum it up would be the expression I’d use, similar to the standard car but with a little bit more on tap.
    This does make it easy to moderate the power without overdoing it, and on a long straight the car builds speed notably faster than standard, so overtaking is easier as you can build “attack speed” faster .
  • Pops and bangs are a bit more conservative and random in their delivery, which suits me fine as I felt they were too over the top in standard form
  • Some people have complained about it being noisier but I opted to keep the bonnet insulation, and honestly I haven’t noticed a difference at all in volume / induction noise (although it’s not “driving with the window open weather” right now)
  • Fuel consumption remains the same; I haven’t gone mad yet to see how bad I can make it  but for daily driving it’s unchanged.


The below must be taken with a pinch of salt given that Mountune were working within strict parameters supplied by Ford, so I do understand that they were effectively working with one hand tied behind their back – still, they remain bugbears for me that I wish could have been addressed with the standard performance and warranty friendly map.

  • The overboost facility remains in place; personally I’m still not a fan, and whilst the overboost coming in seems less obvious with the FPM375 than it was previously, would like to drive two cars back to back – one with, and one without (Revo?), to see the difference.  I’m firmly in the “would rather have all the power all the time” camp rather than having to hit the throttle hard to get the extra 10-20% the car has to offer.
  • This isn’t aimed specifically at Mountune, probably more at Ford’s original Map / ECU setup, but I hate the fact the car doesn’t remember the last mode you were in when it starts.
    I had the same gripe with my M3 and the fact you had to press the M button every time you started the car to put it back into the setting you wanted.
    Why manufacturers don’t realise this is an irritation is unknown to me, I suspect many of us don’t want the mode reset every time the car starts.
    Surely this must be programmable – I know Motorsport Developments can programme Stop / Start to be off by default.
  • The map doesn’t appear to limit revs when the engine is cold like I believe Revo’s does.
    This for me is a missed opportunity and one that Ford should have put in place as standard to protect the engine, especially as temperatures are dropping now.  The moving rev counter on my old M3 was brilliant, moved mechanically as the engine warmed up, wish all cars had similar.
  • The cost – there’s no getting away from the fact that £1k for what’s essentially supplying and fitting an induction kit, recirc valve and remap is not a cheap price; the main cost is evidently against the remap and considering you don’t get an access port equivalent included in that, I wouldn’t necessarily say it represents incredible value for money, but there is an obvious plus point of keeping your warranty intact that the handset won’t give you.  For me that swung it.



  • Ford Warranty intact
  • Noticeable increase in power, particularly at the bottom and top of the rev range, definitely livelier to drive
  • No noticeable impact on mpg or noise (except a few less artificial pops and bangs – which I’m grateful for as you look like less of a chav)
  • If you’ve previously owned quicker cars don’t expect this upgrade to set your world on fire, but it is still worth having in my opinion
  • Overboost is still there, and there’s no rev limiting function for when the car’s cold, and no additional functions exposed by the new map.
  • There are cheaper alternatives which offer more, but lose you the warranty and for some who are on finance, that will be an important deciding factor.

Hope some of you will find that useful, any questions let me know.

Since then I’ve driven the car a bit harder in sport mode and the ECU seems to have learned a little more as it seems altogether more urgent and rapid in terms of responsiveness.  Definitely feels much torque-ier with very little if any lag now, very pleased overall, and with an intact warranty I’d say it’s an excellent all round package, not the cheapest certainly, but….I’ve done the figures chasing thing before and I honestly think bang for buck for a daily this will probably suffice for many for a while.