Is there any way to repair the flexi piece on an exhaust, see bit marked in yellow. Mine is blowing.

buy a new flexi section, cut out the old and weld in the new
only way really, or if its just to get through mot, smother it with exhaust putty so its sealed, wont last but it should get you through lol

Can't be repaired. ive seen ppl replace it with a solid section but its designed to flex with the engine.
What cars it off?

Punto??

Scrap the car but keep the damaged bit, mount it in a frame and sell it as "Art", then use the proceeds to purchase a Rolls Royce...........................................................

Or you could go to Callows in New Ferry, they repair exhausts or can even scratch build them.

Looks like a Punto 1.2, if it is new section should cost you about £20 - £25, easier and far more permanent than slonking it up.

I'll go to callows on Monday

Silver tape will secure it for an MOT - before the heat gets to it.

Failing that, you either need to relace the flexi by cutting / welding a new one in (new section will be about £15 plus fitting), or, replace the section of the exhaust - either new or find a good used one off a breaker.

Mad. I didn't read the 1st post lol

I just bought middle section pipe for £22 from LVW on Cleverland Street, now comes the hard part, as I can not undo the 2 nuts on the join, as socket just keeps slipping, so I may have to get angle grinder out.