I had MAC shorties, and I thought they sucked. Anytime I had to take them off, I always had to use a pry bar to put them on. The MAC long tubes I have now are the same way, they were a pain to install.
My brother's car has BBK long tubes with the one piece flange. They've lined up everytime, and to be honest, I think it'd take a lot to make that flange warp. I'd go with them if I were you.
|