Aluminum Pipe?

[GNon18s]

I asked about this on here and another forum a few weeks ago and got basically no response. I think it sounds like a good idea as long as you start back at the collector or down pipe. I found some cool pictures of full aluminum exhaust on google image but I dont know how to post them here. I think its uncommon because most people (even alot of welders) arent very good at welding aluminum.

[band1t]

hmmm the welding may have a small part to do with it.
the only down side I see is maybe if there was a back fire it would blow the pipe
cause aluminum is a soft metal.