[wantm135i]

Did you know that the tube coming from the turbo to the intercooler is plastic on the x1s and on the 1 and 3 series its metal or aluminum.

Iam getting a boost leak at that point under high psi because you can only tighten the plastic but so much and the clamp provided with new intercooler is 3/4" wide its to wide to get a good grip on the coupling. The other end of the coupling attached to intercooler good and tight no problems. What did you do para to not have a boost leak?

When running stock boost around 8 psi it will never be a problem. I added the jb4 and a lot of other mods when running 12-14 psi low boost no problem, but 16-19 psi it makes a boost leak then the clamp works its way up and off the coupling.

So do i need to replace the plastic pipe from the turbo with one from a 3 series then i should be able to tight the clamp good and hopefully the metal pipe is even bigger.

Or should i just install a clamp that can grip the coupling very good and wont walk up and off of it. the clamp i found is 1/2 wide which is better since it can fit flater has a spring built in to provide content pressure and is ribbed on the inside of clamp with rolled edges. It sounds great to me but i can only tight the plastic pipe to a point until it buckels or cracks.