Originally Posted by Hit Man X

This.

I gave up on the R4, even a new Compressor Works one as I could not sort those stepped ports. I have never seen an R4 that was not noisy to some extent.

My Klima kit has been installed for about month now and was a breeze to install. Other kit seems to be popular too.

Just think of all the TIME you have wasted thus far with that R4 and still do not have a working solution...not to mention some cash. Refrigerant, oil, to the autostore and back, etc