ezi09s that a load of crap. the longer the length of the hose from wastegate to bleeder etc the worse the setup will be. i have used a bleeder before and have tried all options. they seem to be good up to around 10 or 12 psi then just become useless due to the boost spikes. bought an ebc, but they are a pain in the arse setting up. still when done properly they work a treat.