This is what he has to say:

This is a note to anybody wishing to enhance their motor home performance affordably  The team in Cross Hands were really friendly and offered advice as to what type of tuning I needed. A small courtesy car was made available for the 1hr 30mins it would take. The difference is un-fathomable and has taken my Swift Kon-Tiki 669 with a 3 ltr powerplant, from 17mpg at 60 mph towing a car to 22mpg, and the ability to stay in gear on a climb, or for that matter actually overtake is staggering. Awesome job, thanks from a very satisfied customer.

To checkout more about  Car Performace Tuning, please visit:
http://www.quantumtuning.co.uk