no mate jamie didn't want to risk it with the amount of swarf thats possibly in my engine but has tuned it and runs a lot better and is better on fuel but will be going back up for newmans 1 soon but is a lot quieter jamie wouldhave done it mate but he was rushed off his feet when i got there and didn't charge me a lot no complaints will be using them frequently in the future as they have got me out the shit today big time would recommend them to any one on here