The welding between sections on the downpipe is fine, it's the welding where the pipe has gone from 2.5" to 2.25" and the welding on the exhaust hangers which isn't great. But to be honest, as long as the weld is intact and the exhaust doesn't blow, it's not likely to be a problem. Besides, they give you a lifetime guarantee, so if it breaks you can take it back and get it fixed for free (plus the fact they are so cheap in the first place).