exhaust flexi blown

[seago]

Hi to all. got 08 plate 2.4 tdci lwb semi high 6 speed box mk7 what a nightmare this van been with repairs. Now flexi down pipe blown contacted ford they 800 quid for new one. Good news company called fastlane sells flexi really cheap but has tobe welded on to do the job properly . So i need help suggestions any body.working under van jack up on axle stands what do need to remove to get down pipe off ? Seems very tight not much room swing cat i you get the drift