I have a 79 Camaro with a Jegs dual exhaust kit. The kit is crappy and the tail pipes don’t exit the back enough. I got a set of cut outs and high flow cats for Christmas. Would a muffler shop have any issue welding the cutouts up as long as they weld the cats too? In the past, muffler shops refused to work on the car without cats which has made it hard to get the exhaust right. I’m hoping they can fix the tail pipe issue as well. Any experience or advice is helpful. Thanks!