Will this bolt directly to my muffler or catback?

The 2.15" flared outlet is designed for standard slip-fit connections. Test-fit first—some applications may require band clamps or adapter sleeves depending on your system's inlet diameter.

Does this come with clamps or hangers?

The tubing section comes alone. You'll need to source clamps, band clamps, or hangers based on your installation method and vehicle layout.

Can I weld this, or does it need to stay slip-fit?

304 stainless welds cleanly, but you'll lose the polished finish at the weld point. Prep with stainless-specific filler rod and plan on refinishing if appearance matters to your build.