18km/l = 5.56 l/100kms (about on money for big unmod Harley) my 107 ultra gets about 5.4 on a trip. 

Thank's Steelo.

Yep, loose intake or exhaust can suck in air with longer duration cams. Pop, pop, pop, but sometimes, if the balance is right, you can get a great off throttle exhaust crackle 😎 but ultimate performance will suffer 😡

Rick it needs tuning mate, to do that you need data, only two ways to get it, on the drum or on the road, it's snake oil this caper you are being sucked into, not your fault but it shits me to watch it happening.

G'day I did the same thing that rick k did got a shop tune though a Harley dealership. Now they did manage to stop a lot of popping on decel and the motor seems to run a bit cooler both things I wanted but my bike seems to be chewing a bit of fuel. Now here is my question, if I put my bike on a dyno the tune that gets put in flashs my ecu is that correct. So when I got it shop tuned with the power vision wouldn't that have done the same thing. Also can a bike fall out off tune without having a on board tuner even if the ecu had been reflashed. Btw this is my first efi Harley always had carby bikes which was simpler to tune so most of this is new to me.

No, divide the km by the litres, that gives you km for 1 litre then move decimal place to give 100 km.

Chocco the Powervision sends the File to the Bike ecu.

Thanks for the info. Bloody technology still has me stumped at times you know the old saying....you can't teach an old dog new tricks.... yep that's me. Been my first fuel injected Harley I am still learning about tuners, different maps, etc, etc, it's a bit of a mine field for some of us. Anyway I thinking about putting on a set of Vance & Hines staggered big shots exhaust in the new year so I have to retune my bike and hopefully get better fuel economy. 

Choco you can tune with the V&H pipes to make them run as good as the pipe will allow without popping and with good fuel economy etc, done a few mates bikes with V&H stuff, here's a few I can remember straight up, 

You did nothing wrong mate, I think the shops should explain things so the customer makes an informed choice, especially more so if they are riders themselves, naivety at its best right there. For what it's worth my first foray into EFI Harley mods had me handing over coin for sweet FA thinking I was on the right path, 12 months later this forum educated me on my error and I started to ask questions and learn what I could from tuners and cluey buggas willing to share their knowledge, point is you got to start somewhere.

That's how easy It is Rick k, provide some feedback so they can change values on computer and put in bike.

That's bullshit in my book, bandaid approach at best.

Boo