the alloy mufflers/spark arrestors are good, i really like them and have a few. the ones i have are the early round long sparak arrestor types (quiet) and i also have a couple straight through early round mufflers. both are easily repackable and completly restorable by removing a c-clip in the end. you can even get the origianl stickers for them. the Pipes are pretty rare though i would think. ive only seen a couple.