just wondering if there is anywhere in my area that u guys know of who can remap my car, i also have a slight rattle when i blip the throttle, sounds matalic! have been searching this site and have narrowed it down th 3 things! penny valve, cat or turbo, car has done 150k but does pull well for 150bhp nice boost, nice idle. just the rattle sound does sound a bit doggy, how do i post a video? also i want to do the cam chain tens, cheapest i found is Â£238.24 +4 posted of ebay, not sure about quality!