Got a few question for the muffler guru’s out there.

I am posting this in two forums to ge tas much feed back as I can.

It is about inlet and outlet size.

Should the outlet tube be same size or larger than the inlet opening in sq mm or would it help to be smaller.

I know that the tuned pipes I have a 25mm inlet and a 16 mm outlet tube and makes the engine gain a few more rpm’s and does not cause the engine to over heat.

I believe canisters are about the same with inlet and outlet tubes.

I guess my point is if the outlet has a smaller outlet tube or the same size as the inlet will it cause the engine to over heat and void any engine manufactures warranty. ?????


Milton