I have had Bluefin on a previous car. No problems with it. It is not as aggressive as some other maps which suited me fine as just wanted a little more power and not put strain on the gearbox. It does put up the flash count on the ECU every time you put it on and take it off - may be a
problem if you have a warranty. DTUK as you know does not have this issue and is adjustable.
Two of the engineers I've spoke to over the last few months have both said this a not a cause towards a warranty void, and most recently from Michael Howard I have this directly copied from an email correspondence with him:
We have no information about flash counters being an issue when it comes to servicing as it has never come up. I believe the Bosch ME9 ECU was the first and last ECU where we researched resetting the flash counter. In the long term it didn’t actually offer any benefit so it isn’t something we have bothered with since. The biggest issue seems to be that it is easy to check the flash counter with a tool like VAGCOM which makes it very easy for people on forums to use it as a point scoring exercise. Until we see hard evidence of a car being refused a warranty claim as a result of the flash counters alone we will continue to treat them as we do. Put it this way. Have you ever seen anything with your own eyes from a VW / Audi dealer on headed paper that is signed by someone at the
dealership saying the warranty is now null and void as a result of the ECU flash counter?
Keep in mind a lot of the cars we have as development vehicles will have dozens of flashes or more during mapping development. None of these have ever had an issue under warranty, even the cars registered to us with a registration number that reads “Superchips”.
Kind Regards,
Michael Howard.
So in short, there is absolutely NO WAY a dealer will revoke a service or revoke a warranty just because the flash count is different, and they would have absolutely no reason at all to be looking at this as a cause of invalidation, so @MrStroppy, don't worry about it.
@MrStroppy Don't got with a DTUK box! That is absolutely more likely to do more harm than good in the long run, all it does is trick the components into reading false numbers, see more here:
http://www.seatcupra.net/forums/showpost.php?p=4584944&postcount=18
Short term say 6-12 months or so this ain't so bad, but long term, pushing the drivetrain components and other parts like this will start to do damage with wear and tear, it's simply not worth the hassle of compromising performance of components, google it and you'll see for yourself if you want to learn more, I am not here to **** on them, just giving you valid experience and feedback that i've had from those that use them, I'd never use one on my cars.
The bluefin is a proper remap, it works, it delivers on the numbers advertised, it's fully reversable and back-upable and on a friends older car totally transformed it and has been running it for 2 years now.
However, quite note on newer cars like the 2016+ 290 and 1.8 ECU
Currently, the bluefin is not yet compatible with the ECU in these vehicles as it has newer security checksums on it which is causing issues getting the Bluefin device to work with it and past the security, they are actively working on getting this resolved and are close but i've been in contact with them for a little while now and still no ETA as of yet, which is a bit of a bummer as I'm still waiting for one on my 1.8 Leon FR.
Hope all that helps and has been some what informative
, Remap of Tuning Box any day though.