Ok so from the start the car was initially over boosting once getting on the throttle or so I thought,so pretty much what its doing now..was talking to a few people and said get the car tuned/cleaned up and all should be well..ok so once put on a scanner with no faults they proceeded to clean all air fuel and so forth,while they were there I thought it wouldnt hurt to tun more boost? They tried running 10-15psi but it kept breaking down heaps til eventually after about 10 passes amd f*ckn around they thought it was all fine to give back to me? I took if for a day was running great til I was getting into it then car died and starting running like crap? Diagnosed the problem amd great no#6 cylinder was down? Wtf 80km motor gone,then these guys are saying its my fault as it didnt happen on the dyno or when tuning so its my fault..I took fault and got anothet engine off my mates car which was running til I pulled it out..put motor in car was ideling fine driving fine hittin about 5psi but still good. Took it back to get some boost into it and make sure everything is fine? Got it back coz apparently everytime they tried pumping boost in the car would break down and do the same thing as the other motor? Got me F#@*? He said it was the cat,they guttered it and so they thought it fixed the problem? 2 days later im here with my head between my legs having the same dramas? Ive paid 1k to get the car tuned and well thought tuned as he is a mate but he has no idea and nobody else he knows does? Im tired of pumping money into it with no results? What are your thoughts?