In the second video the clanking noise in the muffler are the baffles rattling around. Inside most of them mufflers are 2 baffle plates one forward the other. In each baffle plate are 2) 1/2" tubes top side of 1st baffle plate and bottom side of second. As the exhaust comes into the muffler the path goes from 4" diameter to 2), 1/2" pipe then into a second 4" chamber then back down to 2), 1/2" pipe than a short distance at 4" than out the 1/2" outlet. Some of the newer mufflers have the 1 1/4" exit out the back of muffler but if it is a California model it could have a converter inside of it and that as well can cause that rattle and cause a restriction which will cause a heavy ping.
|