Well since it has no moving parts and it is not a major thing to worry about considering that fact and that it is a cast( i think right?) part that was made by a manufacturer for Summit then I would assume it has no problems. Now for the summit brand stuff, I can vouch for the headers as I bought a chrome set for 140 new, perfect fit, one peice head flange design and no leaks with my no name brand o/r H I'd say that says something about Summit. I talked to a few guys there and they said that Summit wouldn't put their name on a crappy part. Call Summit, sometimes they'll tell you who makes it for them.