サウンドインサートチューブ RS-4T マフラー ターンダウンチップ、1.500インチ (INS-RS4T-B)

The turn-down tip fit perfectly on my RS-4 muffler, and installing it took less than five minutes with basic tools. The sound reduction is noticeable without killing the bike’s character—just the right balance for me. Exactly what I needed for a quieter neighborhood ride.

Had to swap the standard tube out at the track and this drop-in insert cut the bark just enough to pass sound check. Fit perfectly into my RS-4 turn-down tip without any modification.

I’ve been running this low-volume insert tube with the turn-down end cap, and the decibel reduction is exactly what I needed for my setup. The 1.5-inch tube slides in snugly and stays put even under heavy use.