サウンドインサートキット RS-12 マフラー用 1.625インチ (INS-38-K)

I was pleasantly surprised how easy this kit was to install on my older RS-12—the 1.625" insert slid in with no modifications needed. It dropped the bark just enough to keep the neighbors happy without killing all the low-end tone. For a non-spark arrested option, it’s exactly what I needed for my j

My shop had to hit a stricter noise ordinance this summer, and the insert kit's decibel reduction finally made the RS-12 pass without swapping the whole muffler. The low-volume design is a straightforward bolt-in, and the install took under an hour. Just note it's not spark arrested, so I kept that

Finally got the insert kit installed on my RS-12 and the sound reduction is exactly what I needed for my neighborhood. The 1.625" size fit perfectly without any modifications.