So I'm torn between the 2 and I need opinions, current setup is stock headers, z1 test pipes, stock y pipe, z1 mid pipe and z1 single exit. they are priced about the same, stock y pipe has developed a leak in the flex section. Give me some thoughts please

 

From reading through these forums, I have not read good things about stillen's exhaust. Mainly that their mufflers fall apart, but that's enough to push me away from the rest of their exhaust. Personally, I'd give z1 a try

 

honestly just get a totalflow flex pipe and have it replaced at an exhaust shop. The flex pipes from every exhaust break/rust out eventually and Lou's custom near me does both flex pipes for $75 labor