Can I weld this directly to my existing exhaust?

Yes—the flared end is designed to mate and weld into custom or repair fabrication. Clean the mating surfaces with a wire brush before welding to ensure a solid joint.

Will this rust if I don't paint it?

Stainless steel resists surface rust and corrosion far better than mild steel, so painting is optional. If you do want to paint, lightly scuff with fine sandpaper and use an exhaust-rated paint for best adhesion.

What diameter and length is this tubing?

2.5" diameter, 18" long—sized for mid-pipe and secondary exhaust runs on most custom builds. Measure your system before ordering to confirm it fits your application.