much has been written about the sp800 header on the sp700, and the air intake as well. could anyone tell me if you need to upgrade the silencer, and if you put the white bros on your ride, what does this pipe sounds like? how much louder is this setup? can you use the stock sp700 silencer?. My 05 700 efi is stock right now, i'm very pleased with in, I have many accessories to make my hunting/ice fishing/riding more enjoyable. I know i'll be putting the front spacers on soon. after that???Thanks for any feedback in advance. great forum.

 

Yes you can use the stock muffler, the white bros is louder but also you can tune it by changing the number of discs in it you can get more bottom end or more top end, have ordered a quite core for mine but it's not in yet. I like the power difference it gave me, haven't tried it with stock muffler to see if there is a difference.