Low Profile worm clamp. I used two ZipTies like the OPP did, and after 6 days of tuning and testing with multiple boost pulls, everything was intact. ZipTIes had not broken or stretched. However, keeping with holding as much pressure and to be robust as possible, use low pro worm clamp. THese buggers are not as easy as the opp said to find, but I found 1. If you can't find a low pro worm gear, then get a CV axle clamp, for they are low profile as well.