Is anyone running either reinforced or hard pipe boost/vac lines?

I want to get some, I don't want to run samco lines again as they go a bit soft and sometimes collapse under vacume etc.


Any ideas where I can find some?? T'interweb is giving all the usual suspects Samco/Viper etc but nothing really suitable.



Looking for 4mm 6mm and 8mm

Cheers

Matt