I installed the 21905 Vance and Hines quiet baffles into my VH Hi Output Slips On's. I'm going on a 5k + trip, for 2 weeks, and wanted to quiet the exhaust down a hair. Just came back from a ride, and the bike ran great, and sounds even better. I feel like it may have picked up some Mid Range with the short ride that I just took. When I bought the bike, and I added the SE Air Cleaner, and VH Power Duals, and Hi Output Slip On's, I ran my FP3 on auto tune for a few tanks. The graph looked great, and I flashed my ECM, and took the FP3 out, and tossed it into my tool box. I'm wondering if I should do another auto tune since I just added the baffles, and reflash, or just leave it as is.


I love the sound, and the baffles are going to be staying in for sure.


Thanks in advance

 

I have same setup, with exception of the QQ thunder city baffles, bought the V&H quiet ones when I changed to the hi out puts from the CFR's which even with the QQ baffles in were to loud for me, I already drilled out head pipe for the thunder ones so left them in, I would do another auto tune cause back pressure has changed with the addition of the baffles, cant hurt