stealth fitted my miltek downpipe/cat, took bout 3 hrs. It was a bit of a pig as the middle section and back boxx hasm to come off first and then he said the bolts were a biatch to get off due to space restriction and the fact they were stuck on! Be warned the studs may snap!!!! As they are brittle due to getting hot all the time. So maybe worth getting spare ones (cost about £5 for 4)