Anyone chipped a 2.5TDi 140 bhp engine ?

[Nick]

Just wondered if anyone had done this and whether it blew anything ( head
gasket) or bent / stripped anything ( driveshafts etc ? ) or clutch
struggled ?

I see chips advertised taking it up to about 170 bhp which would be useful,
but don't want to do it if the engine/transmission is at or near its
limits..

Thanks,

Nick