Tuning opinion. My first Rovy (exchanged for Subaru) 1996 2.5dseAUTO, had done 180,000 miles . I put the little blackbox on and it became a rocket. I would advise anyone to do the same,it so changes the personality of the car. One doesn't have to use the power but in traffic its a boon. Also the fitting of the box only takes ten minutes if you're slow. It is removable if/when you sell the car. I had no problems with the car except airbags and a wiper motor in nine years, all repairs and servicing by myself and jslandrover Roy. However on my recent 1997 2'5dse Auto has done at least 120000 kms and to try something different bought an exchange ECU from Turners' delivered to me here in France a simple swop and Sync, Terrific also now a rocket and where I live its all mountans and vally's Like the Rhondda. So using the sport button useful, its a bit quick so good shocks and airbags important, but sooo smoooth. I Recommend Turners' not all on this forum agree though. C'est la vie. Motto, "Get a life Get a P38" its printed on my Tshirt and number plate. Choice of tyres, shocks, bags crucial to a P38 and front suspension bits, battery's influence all the electronics esp diesels.