Originally Posted by Svre46

I highly doubt it would be any worse. The TPs are all the same basic design unless you are going with resonated pipes. The CEL issue should not be one since the TPs from surewin appear to have the extended bungs. It seems with any TP it’s a case to case basis on the CEL but form what I hear using steel wool with the extended O2 bung more often than not does not yield a CEL. I would say that you would be perfectly safe with the cheaper ones. I do not personally have the surewin test pipes so I cannot comment on quality. I did compare the Megan pipe to my surewin. They look identical except the Megan has a small little support bracket welded from each pipe where it makes the Y.