making the pro circuit T-4 quiet?

Probably not likely but I had to ask... I have an older T-4 3 1/2" pipe and full header system on a 2000 XR650r without arrestor or baffles and it's not going to pass the sound test for sure. The packing looks ok but does the pro circuit quiet insert help much? Anyone try other options?


I have the same slip on muffler. I bought the quiet insert and my wife thought it was louder. It went from low and loud to "Poppy" and loud, because it is forcing exhaust through a smaller hole. I will try to get you more info.

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