I installed the FX-150 on my 2013 135is and am a really disappointed at the tapping/ticking sound at idle. In the engine bay it doesn't really make any more sound, but in the cabin with the windows closed its very loud and annoying. It can hear it coming through the floor boards
It's like its resonating through the engine/transmission mounts into the cabin.
Anyone found a solution to this?
I wish I waited for the Dorch unit, it seems like a much better kit at a lower price.