My findings as well.
After I added the V&H BigShots and S&S Super A/C, the dealer did their "canned map download" thing.
The bike ran a little better but I wasn't happy with it at all.
Fuel mileage increased significantly (up by 4-5 MPG), decel pop was constant, and my oil temps soared by 25°.
Obviously it was still way too lean.

I started off using ViED's as a cheap fix, but mainly to confirm the lean condition.
They worked well, so well in fact that I left those on for a year.
But I always knew I'd be looking at a tuner down the road since I wasn't crazy about the full-time piggyback install of the ViED's.

Then the FP3 came out.
After reading a fair amount of good reviews I bought one.
After flashing the first "recommended" map, the bike really came alive.
I could definitely feel it pulling harder from top to bottom, decel pop vanished COMPLETELY, oil temps dropped considerably and my fuel mileage returned to a more respectable 40-42 MPG...
It even sounded better.

I'm quite happy with mine - no complaints whatsoever.

If I ever decide to go further than Stage 1 I may reconsider another tuner, but for my set-up the FP3 performed beautifully.
..just my ...

 

I find I get no pops at all if I make sure and roll off the throttle all the way before pulling in the clutch.

 

What exactly can change causing a growing decel pop? Over the course of say the last 7k miles, she has gone from snap crackle pop, to pop bang , to now pop pop gun shot, I have supper trapp mean mother straight, nice air cleaner, big bore kit an a pc3, never messed wih the pc3, been the same map forever,

 

Does your baffle have fiberglass packing? If so, check to see if its still there or maybe its bunched up to one end of baffle.

 

I pulled the baffels out awhile ago thinking maybe they rusted an shrunk and is why its changed, there is no mesh, they are open pipes with a tube 6" long of spiral "cheese grater" hole in it for baffels

 

I got rid of my popping when I did pipes. SE/AC,, SERT and dyno.. maybe you can learn more about those mods to help..

 

I have V&H short shots and a screamin eagle intake +power vision tuner and I did about 6 auto tunes and my decal pops have almost disappeared

 

99% of the time decel pop is NOT from being too lean.

Decel popping does Not damage your engine...it is simply unburnt fuel that is burning in the exhaust tract after exiting the engine.

Decel popping occurs when one of two things are present.

1. The bike is so lean the exhaust is superheated and is burning the unburnt fuel that is in the pipes (there is always some unburnt fuel in the pipes no matter how lean). This is very rare.

2. The AFR IN THE pipes is just right to burn the unburnt fuel. This is quite a common occurrence when free flowing pipes are installed (whether or not a free flow A/C is installed). It can also occur if there is an exhaust leak that is introducing extra air into the exhaust tract.

So adding a free flowing air cleaner may change the afr in the pipes enough to eliminate the decel pop. However, the big shots are prone to decel pop and the two ways to change the AFR in your pipes that are most likely to get rid of the decel pop are-


Install Thunder Torque Inserts. Not only will these reduce/eliminate the decel pop, but you will also have a boost in the low & mid range powerband.


Get a good tune done, specifically addressing decel pop,

Or just dump some extra fuel into the combustion chambers...that will pass more into the exhaust tract, changing the AFR and eliminate the decel pop.(not recommended, but it does work)

 

Like was said above about packing.

An exhaust or intake leak that is getting worse.

An air cleaner that feeds the hot oily air back into air cleaner...can cause carbon deposits, which change compression ratio, which makes a previously good tune not so good anymore, which has changed the afr in the pipes, resulting in more decel pop than before.

 

Interesting, ill check on a leak, intake an exhaust, and the air cleaner sometimes drips oil, guess from the breathers puttn oil back in, wonder if its time to do new breathers