I just finished my rebuild on a 50 chevy pickup with a 350 chevy that has a small Weiand blower. The dual exhaust is 2.5 inches, Sanderson headers and Spintech mufflers. The exhaust system has also been ceramic coated. Looks great too, but just too loud. When I drive it, the drumming sound kills my ears and I have good insulation in the cab. How can I tone down the exhaust system? Could I add some type of silencers in-line so that I don't have to replace the exhaust system completely? I paid $600 for the exhaust and another $200 to coat it so hoping to do this without scratching the whole thing. Any thoughts would be very welcomed.