2.25" vs. 2.5" X-Pipe?

[jcp240z]

You mention equal length tubing. From what I have gathered in the 4.6is the shorter run has a smaller diameter (50mm) vs the longer run (55mm). I believe this was to make the two equivalent in length.
This is for the downpipes to the resonator.

[bcredliner]

Originally Posted by jcp240z

You mention equal length tubing. From what I have gathered in the 4.6is the shorter run has a smaller diameter (50mm) vs the longer run (55mm). I believe this was to make the two equivalent in length.
This is for the downpipes to the resonator.

If that is the case the differences in tube diameters would not make them equivalent in length. The smaller side would produce a greater velocity which would be a bad thing to do.