i have a problem with my p reg vr6 i bought it 3 weeks ago and when i put my foot down it seems theres no power untill i get to about 3 or 4000 rmp brown pants for overtaking ect. it only dose this now and again some days better than outhers i have replecaed the coil pack,leads,plugs,fule filter and its been on my mates computer down the garage and no faults at all im now lost on what to replace next please let me know if im missing somthing many thanks from a confused vdub owner