Sounds familiar! I sent a very good mate down there from our Bristol group with a Fiesta Turbo to have OMEX fitted, which my mate supplied himself!

He charged him a stupid amount of money and the car ran like a pile of crap. It had no cold start strategy and kept cutting out at junctions on idle. It ran so bad he ripped the lot out within weeks and put it back to standard! Other members of our group will substantiate this!

I was truly embarrassed!!