i have a 2006 xj tdvi soverign and the hearside turbo unit requires replacement. i am told by my garage a new replecement fitted will cost £2000. I have tried to find a supplier and can only find refurbished units from £250-550 approx some with 2 years guarantee. are these a good purchase my garage says not but would be a much cheaper solution. Any advice would be welcome as this is an expensive solution potentially and i cannot find a source fr a new unit with price/delivery. thanks