any one using the pro factory valocity stacks .just got mine fitting them soon to my b2h 636 , been talled mite have to get dynoed any advise .

 

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They're a lot of Good Members Here and they will do there Best to Help You out with Your Questions. Sometimes It Takes A Little Longer Then Others. So, hang-in there.

 

Welcome to KF. I would say yes to tuning the ride after the stack changes. Post up some pics of the progress.

 

will do pics all the way through my install which will be in few weeks .

 

i have a set of on my 04 636, nice throaty sound and you will notice a lil more mid-top end power from them, i recomend tuning with the stacks after but not recomended

 

yes on tuning especially if you swap out with an aftermarket filter and pipe...

 

cheers for tips everyone , got bmc air fillter to go with stacks gone one tooth down on front got ignition rotor from factory pro full system ill get the power comander and get it set on rolling road and as soon as this snow and -3 clears off happy days whats the air box mod all about .

 

I'm thinking he was talking about an aftermarket air filter like K&N or any other less restrictive model. The higher air flow will change the way your bike will run.