I have the charge pipe to N75 and DV ones. They were pretty solid but the DV hose is a bit too short, so it pulls the DV connection on my TIP a bit. I used to have the upper boost hoses. The charge pipe to SMIC one was OK after a trim but the SMIC to throttle body one wasn't good. Even once trimmed to exactly the same length as the OEM one it kinked badly at one of the bends. I got rid of them and got SFS ones instead.
Also, the silicone on the boost hoses appeared to be fairly thin and didn't feel that great. My 2p's worth? I won't buy their stuff again, personally.