1957 2 door sedan 210, (running) & 1957 2 door B/A hardtop (apart)[
I am going to replace Flowmasters with Dynomax Super Turbos, and my choices are a 14 inch case or a 20 inch case. It seems the 20 inch length would have the e-brake cables rubbing on the case. How much louder are the 14 inchers vs the 20 inch? How much of a problem is the brake cable rubbing on the top of the case?