My '04 ZX3 Zetec has a FSWerks race header and flex pipe and a borla cat back with a test pipe rather than a converter. It is just a little too loud for my taste and I want to put a converter back on it to quiet it a little bit and so when I ship it back to the US I don't run into any trouble. I just want to know if there would be any obvious problems running this converter? It looks to me like it would fit the hangers and the flange, but I thought I would ask before I just throw $200 at it to find out. Or would a universal high flow be a better option?