The new muffler arms were a little shorter than the stock rusted ones, but I got them working with the original rubber mounts. No need to buy new linkage pipes or a new exhaust pipe, a $20 W*a*l*m*a*r*t reciprocating saw and metal cutting blade make it easy to reuse the originals. Saves about $25 compared to buying replacement tubes. Malibu quiet as a mouse, doesn't sound like a Harley anymore.