I bought a two and a half inch do it yourself kit from Amazon for $96 and two two and a half inch turbo aluminized mufflers for $48 and only had to make a few cuts and tacked it all together and pulled it out and welded it and I didn't even notice anything about the aluminized different from just welding the regular metal... I should add that I did it with my $100 Harbor Freight flux wire welder that I bought probably 6 years ago or longer and have done hundreds of these kinds of jobs and more with it....
