we have used both 13-15 clamps and also 14-16 clamps. the 13-15 clamps require being unscrewed all the way to slide over the hose once it is over the aluminum tubing. I had people saying that they would prefer a larger clamp and the 14-16's work also. if anyone would prefer to switch one way or another just send me an email and I can send you clamps. BTW, we use a fuel line clamp not a normal work gear clap for those connections.



the install should not throw any CEL's, please let me know what the code is and we should be able to pinpoint the issue and get you going