I have installed Vance and Hines HS Slip ons along with the V&amp\\;H Fuel Pak on my 07 Dyna. The performance is great as is the sound. There is this annoying problem of a sometimes pop (almost a backfire) on&nbsp\\; deceleration. I have a K&amp\\;N high flow filter kit on the bike and the quiet baffles in the pipes. Has anyone had any experience with this situation? I have gone around and around with the tech people at V&amp\\;H and have been able to make small improvements. Everyone I've talked to said all of the aftermarket fuel mangement systems have drawbacks.

 

There are a number of posts about this elsewhere. I have a similar problem since putting on V&H and XiED's but not too bad if I don't let off the throttle from a high rev. This seems to be a regular occurence when doing a stage 1 with pipes, air filter and modifying the ECM in some way.

 

Thanks, I did a search of the "Popping" problem and found others with the same situation. Seems that it's one of those irritations we all have to live with from time to time. I think I will pull the pipes and use some high temp silicone in case I do have a leak at the head pipe muffler joint. I've tried everthing else with no luck.&nbsp\\;

 

when you do your sealer on the pipes get some new clamps.
torq them to spec this should help also.the vance and hines clamps .
suck .good luck

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