16. And just like that, the exhaust system was done. The hanger mounting points made it feel rock solid, and when we fired up the 383 small-block, it sounded awesome. It wasn't too loud, especially in the driver's seat, but had a nice, deep tone. Lee said that the Dynatech system would cost about $250 to get MIG-welded in place on a stock car with leafs. Obviously, our TIG-welded, semi-custom installation would cost more, but considering the leak- and rattle-free system we ended up with, it was money well spent.