I'm going to pdtuning on 3rd nov to remap my 105 tdi (+30 bhp, stage 1), never used them before, i'll update with how it goes. to be honest i've heard mainly good things about pdtuning, one or two people don't seem to rate them, but you'll always get that. £199 is the cost of their stage 1 remap (no rolling road), rolling road is extra. from what i've read a revo remap seems to get the thumbs up from most people. might be worth speaking with your insurance company also before you go ahead, it's +15% loading on my policy cost.