crappy welds Rant/ got ripped off!

[yellowc3]

Hey i dont post much here but thought id ask becuase someone has to be able to shed some light on this. I had a downpipe made for a turbo car im building, didnt realize it until i brought the pipe home and really looked at it but there are a lot of pinhole leaks are around the welds. I paid a local welder a descent amount of money to do this and it leaks and looks like a 10 year old welded it. And what really has me wondering is the fact that the welds are a beaded yellow/brass tint. it doesnt appear that any of the metal is welded together but it seems like he just melted a coathanger on it to hold it together... He told me if anything is wrong or anything to let him know but still, i dont understand how someone could let this leave the shop because i didnt notice until i got back to the garage and noticed that the yellowish/brass welds were covered with regular low temp silver spraypaint along with serios pin leaks.... does anyone know what is going on here? when i was leaving he said if there are any leaks to use JB weld... WTF??? i guess ill have to cut my losses here and take the pipe to a reputable welding shop and see if it can be sealed up because if not i just wasted a ton of time/money/effort doing this considering i even brought the guy a spare motor/trans to mock the turbo kit up with and now i realize the welds are crap. sorry to rant but i dont post here often and im kinda ticked about this whole thing. In this pic you cant really see the bad welds because they are on the bottom and side, you can start to see some of the mess on the left by the flange... i will get pics of the realllly crappy welds tomorrow.