bogging on rvf

[murdani]

hey guys i'm riding an rvf, been using the stock pipe for a few years, until recently i change to an aftermarket pipe, bike has been performing like **** except for the sound.. the shitiness is that at 4th to 6th gear, bike's rpm very hard to hit the 7.5krpm. bogging all the way.. wads the prob? me using knn air filter, and stock jets..

1) do i need to re-jet the bike?

2) heard abt factory pro jet from KNT. any reviews abt the pricing and the aftereffect?

3) any other way to make the bike resume back to normal other than changing to stock?

[Jehuty]

Change pipe need to retune what.

[stsoh]

yes, need to re-tune/re-jet ur carbs n dyno with ur installed aftermarket exhaust system.

using bigger than stock header id (internal diameter) will definitely loss power at lower rpm.

set ur carb richer can gain more hp.