Boost ....mk1 tdi 110bhp

Hello , all wondering if you can point me in the right direction please . 

Octavia mk1 tdi 110bhp 53 reg , egr delete just fitted, and was mapped and egr mapped out prior anyhow , just had the turbo cleaned etc and was going into limp , was viens blocked etc . 

Now when test driven ( on boost I may add) , the lower pipe keeps popping off , I presume this is because the metal clips are worn ? ....see picture ( car is 53 reg lauren and klement)

Anyone done upgraded pipe or hose , or to the plastic it goes into etc ? 

Self tapper in it for now and driving a little bit like miss daisy

cheers
ant