Well what I thought was going to be a 5 minute job is now looking like a trip to my friendly mechanic after my accident back in September thought the exhaust was blowing found a crack in the collector. As its a micron system the down pipes are held into the collector by 4 springs so poped the springs of to swap the collector box over with a replacement I bought collector and down pipes are well and truly stuck so thought okay unbolt the system and take it off 1 and 2 cylinders bolts came out but 3 and 4 the bolt heads are that corroded that can't get a socket on there so it looks like a trip to the mechanic to get the heads drilled off and replacement installed plus stainless bolts put in and repair any damaged threads it doesn't rain it fucking pours winge over