Thanks RUmcajs, seems you are the only person that replies ,I will get my mechanic to check when it goes in for tyres next week, Young fella switched on, Spends nearly all his waking hours fiddling with cars, Did my nads stuff for me , Put in a 2 stage system for boost on the turbo fantastic, job works well . first boost is a round 14 and the big boost for towing. is about 18 works really well, Now down to around 11 Lper 100k pretty damn good for a big vehicle. I used to do all this crap myself ,too old now to be jumpin all over these cars and I,d rather give some young guys a bit of work .