エキゾーストスプリング（インシュレーター付き）長さ3インチ（1個売り）

Needed a 3-inch spring for my build and this one fit perfectly with the insulator keeping it snug against the header. No rattling or slipping after a few heat cycles, which is exactly what I was hoping for.

The rubber insulator is a nice touch, keeps the spring from rattling against the pipe. This one's held tight through a few rides so far with no signs of stretching.

Went through a pack of these over a season of racing and this one’s holding up way better than the last brand I tried. The insulator sleeve keeps it from rattling against the pipe, and at 3 inches it’s exactly what I needed to replace the worn-out one.