Heya mates... Just a quick question, hope you can help me. The weekend after this one I'm getting a FMIC fitted. The shop did put together a kit made of a Forge core (same as in Forge's own kit for the S3 8L) and custom pipes, bends and silicone. We then discussed what diameter we should use for the hot and cold side. The shop wanted to use 2.5" all the way on both the hot and cold side. But on so many setup's we studied lately they all (well 90%) use 2" for the hot side and 2.5" for the cold. Why is that? Isn't 2.5" on the hot side better...why the difference in the first place.. Can somebody explain this for me... Thanks in advance!!