Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
It's quite easy but undoing the bolts from the original cat to the manifold can be a nightmare as there is no space for your hands to stop the nut from turning.
I did it myself and I'm not all that mechanically minded!!
Nightmare of a job. You need someone laying under the car with another person sat on the engine leaning over the back holding a spanner on the bolt heads. If it's your first time, it will take between 2 and 3 hours.