Very viable comments regarding Drive train warranties etc etc.
If you want the extra power, no matter how small it's the risk you take.
From experience, not with this particular box, but with the other boxes I've used I've covered many thousands of miles and I mean many thousands of miles the last three vehicles I've had in the last 10 years all covered in excess of 90000 miles each and I never suffered any Drive Train, (Clutch, Gearbox, Drive Shafts) or Engine Issues (Turbos) in fact two dealers, a Ford and Peugeot both serviced my vehicle with the Box in view and operating. And one Dealer, who was an Audi Garage servicing my A4 & A6 requested details from the Manufacturer and I believe offered them to their customers. That particular box was installed on a 2.0ltr Tdi manual and also a V6 Tdi Auto requested the manufactureres details and I beleive he offered them to his customers.
I'm not in anyway saying you should rush out and get one. All I'm doing is relaying my experiences of running my Seat Arona with the VW 95bhp engine that you have in your Polos etc.
Whilst my car has only covered 37k miles in its first year, and only 3k miles with a Tuning Box fitted (1k with a Race Chips Box and 2k with the Synergy 5 Box) I have yet to experience any issues. I'm sure with the built in Electronics, so rightly pointed out by our friend "monkeyhanger", if there was any sign of over-boost or the engine was to operate outside it's parameters, it would flag it with a light and possible put it in limp mode, so I am reliably informed.
When I raised this at the recent service with my dealer, I asked if they could check to see if the engine was running OK as I had experienced (allegedly), surges in power and I thought I saw an engine light flash up.
I was happy to be told the dealer couldn't identify anything amiss. Read into that what you will. By the way I had removed the box prior to the service, I don't know my dealer that well yet.
As with all these things, I'm sure if you constantly drive the car as if you've stolen it, then the chances of something going amiss increase. But use the torque, drive as you normally would using the additional power and torque to get up those long climbs, carry out overtaking manoeuvres safely, then you should be alright.
I tend to change the oil regularly, in my case every 9k miles oil and filter change, not that that should matter, but I do, and I also tend to add decent fuel and as I said in my report I use the following additive in the petrol
https://www.powerenhancer.co.uk/shop-by ... hesis.html
and use this in the oil
https://www.powerenhancer.co.uk/shop-by ... -5644.html
and I've had no issues.
You fit one of these at your own risk, but this engine has an amount of inbuilt safety, VW obviously think so to run Long Life Service Intervals 160k mile Cam Belt change.
Obviously if anything should go amiss I'll let you know. But I expect to run the car for another two years, expected mileage 110k miles with no issues only enjoyment.
If anybody is willing to try the Race Chips Box I still have it boxed up and I'll be glad to post it out its done only 1k miles approx and you can have it all intact with Instructions etc etc for the Princely sum of £100 including P&P