What would be a good temporary exhaust system?

I just need something to get from point A to B. about 15 miles.

All I'd need is some straight pipe, or cheap mufflers.

How would that work? Would I new collectors to go into the straight pipe, or mufflers?

I do have two collectors, but I wanted to use them for my "real" exhaust,and don't really want to spend more money on something I'd only use 15 miles.

I'm just trying to think of a way to rig this up temporary.

Thanks!