hamish,2004 pipes won't fit you need 1998-2003 ones,most recommend Motad downpipes as do I, give them a ring for best price,you can use your original end can or get a nice new one.
The exhaust studs & nuts need to been sprayed with Plusgas for a week or more before carefully trying to remove nuts hopefully all will come off nicely,you need to fit 4 new exhaust gaskets,apply some copper grease to studs & evenly torque nuts to 10NM. Goodluck.
The exhaust studs & nuts need to been sprayed with Plusgas for a week or more before carefully trying to remove nuts hopefully all will come off nicely,you need to fit 4 new exhaust gaskets,apply some copper grease to studs & evenly torque nuts to 10NM. Goodluck.