I got a new header pipe for my 00 Cota. When to put it on today and discovered to my surprise a restrictor plate welded inside! The pipe is about an inch in diameter and the restrictor on the inside cuts that down to about 1/2 inch. It's tack-welded in three spots so I figure I'll just grind the welds down and bolt hit on in from there. Anybody seen a restrictor in a Monty header before? Can't imagine that I'd want to leave it in.