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Should we bring our truck or go small? [15]
Regarding converting it to EU spec I can email you the SVA checklist which is a test done in the UK, The checklist could be used as a guideline. I also used to deal with several companies specialising in various things to convert JDM cars to UK spec, speedometer conversions, piggy back ecu things to alter the lights etc, If you need any help i could give you some advice, I spent 2 years of my life importing cars from Japan to sell in the UK and would be happy to help.
Regarding keeping it, With a 5.6 litre engine I think you may find petrol a bit of a pain in the wallet, on the same note as fuelling you may need to adjust the timing so that it runs on EU grade fuel which is minimum 95 octane but i'm assuming that it will be fitted with a knock sensor which will adjust things accordingly, Would be worth checking out in case it causes any damage ie burt out valves etc.
Personally i would get it eu compliant and sell it over here for a tidy profit, depending on year you could probably easilly get 70k pln for it (assuming its a 2005 model)
Poles seem to love huge usdm vehicles :)