I have V&H big radius and stage 1 with a SE super tuner and I pop like mad on decel. When I bring it in for my next service I am going to have them throw it on the dyno and see if they can tune the popping out.

 

I have a V&H Fuelpak with Cycle Shack slip-ons. I have decel popping. It is the O2 sensors from what I've been told. When I save some coin going to the Thundermax as it is easier to fine tune.

 

Well, there are an awful lot of folks with the O2 sensors and no decel popping.

Its not the O2 sensors that cause decel popping. Its a combo off low-throttle leanness and poorly designed exhaust. You have both of those with the setup you have.

 

So it's not the O2 sensors that are attempting to lean out the system in the closed loop on deceleration. The problem with the fuel pak is that it is not fully customizable, that is what I meant by the O2 sensors are causing the problem.