2 barrel with stock exhaust??

I've seen people chop the outlets off of manifolds and weld on just a steel piece of muffler pipe a larger diameter with a flange on it in the same location as the original but just larger. Seen some really crappy jobs, but seen some really good jobs done, too. For all that time and trouble, you should just get headers or do the split manifold or the Dutra Dual$$$$$