it depends on what hes failed it on
if jagged edges then do as I said earlier and lash it up with a bit of gauze and filler then problem solved as far as mot goes
looking at the arch though it definitely needs sorting properly so is worth it being cut out or it will only break through again with filler / gauze
as for exhaust surely he can mig the bit that's blowing as will be cheaper than swapping the system over for sure, just because its stainless does not mean it cant be welded with normal mig wire.
geezer sounds like a bit of an anal arse tbh, have you got the failiure sheet you can take a snap of so we can see exactly what hes pulled it on?
if jagged edges then do as I said earlier and lash it up with a bit of gauze and filler then problem solved as far as mot goes
looking at the arch though it definitely needs sorting properly so is worth it being cut out or it will only break through again with filler / gauze
as for exhaust surely he can mig the bit that's blowing as will be cheaper than swapping the system over for sure, just because its stainless does not mean it cant be welded with normal mig wire.
geezer sounds like a bit of an anal arse tbh, have you got the failiure sheet you can take a snap of so we can see exactly what hes pulled it on?