[Don]

The mufflers made by Arizona Exhaust with a case length of 30", diameter of 4" ,ends 5"with ID 3" were $32 each. Quote from Lucien " Core is perforated to produce a vortex along the walls which helps to difuse sound. The smaller the pipe, the more restriction you get ,the fibre glass muffles the higher frequencies "

JC Whitney has in their catalogue a muffler, part number 22UY2853U, with the same specs, cost of $36.95 each

Prefer to do business with Lucien at Arizona Exhaust when he answers the phone himself ,provides great service and excellent quality.