musigenesis
Senior Member
I don't see anything wrong with welding sections of pre-made exhaust tubing.
I'm sure it's a better technique than clamping - it was the fact that I stopped this dude specifically from attempting to weld up my exhaust that made me glad. If he'd even been able to do a good job of it, he would have lied about how long it took him and gouged me on the price (my build thread has a long post about his work, not that I recommend reading it).