Took these pics 2day that prove that dump valves work, in many different ways!
Snazzy pen holder

garden ornament

bottle opener(it gave this bottle of beer an extra 25bhp too and prolonged the life of the fizzyness

)

Mantlepiece ornament(reduced back pressure in the room too

)

guinea pig food bowl/plaything
but my favourite use of all, and it really does work well for this,
Dustbin weight!!!
some bloke told me they work on RS Turbo's too, but i just laughed in his face!

had no proof it did its job you see.
Anyway being serious, its done its job for me telling everyone local that my car is now a turbo and not a bonus, but now its time to go in the bin as it sounds gay, fooks up the idle and generally makes the car run shit
bye bye gay valve....
cheers
Danny