Quiet Exhaust

I'm sure this has been discussed time and time again, but I'm trying to quiet down my 05 400 EXC. I was hoping the FMF Q4 would help, but they tell me it's louder than stock. Any input out there? I'm running the stock exhaust that has recently been repacked


Ive tried a couple of different pipes and same on the 250F. The stock one is about as good as it gets. The newer 08 and up pipe that has a triangle profile MIGHT be a little more quiet, but not sure if really is, my ear isnt sure

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