what are the HP/flow limitations of a stock muffler?

[haycait911]

I've been running a bursch on my 3.0 and just changed to a stainless stock 'banana' muffler. does anyone know the limits of a stock muffler HP wise, or flow ( engine size) ? the engine dynoed 250 hp with a big-mufflered bursch, but I get tired of the noise and have heard not-good things about bursch and their affect on the bottom end. any thoughts? thanks, Don.

[Oh Haha]

I think at 250 HP you are at what I would consider the limit of the stock muffler.

There's a lot of restriction which certainly hurtsthe exhaust flow.

There is a reason most reaplace the factory unit with aftermarket.