Windows level the "latest" in 2018.

Hope that helps ?

Bike was a 2011 Dyna with a 204 cam ,  headwork and a Two Brothers racing 2 into 1 exhaust.

O2 sensor delete at some time in it's life. It had previously been tuned , by what we didn't know.

Some shops used to do that back then , removing the O2 sensors.

Maybe Power Commander, maybe Powervision, maybe Maximus , maybe it's own Supertuner pro now long gone.

Tuning run went well , took a coupla goes to dial things in. He was complaining of decel pop (it was bad). I put that down to the length of the exhaust system , wouldn't have been 60% of stock length.

A nice long steep downhill is a good thing to capture decel data, still got be slow on throttle movement to keep the ecm giving you data rather than doing something else but with different speeds and gears you can get most of it, VE tables can look really funky in that area but they want what they want, short pipes can be a challenge 😁, Jason showed me a couple he did years ago on the dyno so I kinda had a heads up there when I came up against it the first time. Anyways I know this isn't your usual way of doing it but thought I'd chuck it in here for consideration 👍

For sure not my way, not enough time sadly, I think it's called "time poor"..

That plus I do it from home in the inner metro, lacking in topography changes and places to do 110 Km/H.

I have worked with many 2 into one systems over the years, but this was my first experience of this brand.

V&H big radius 2 into 1 , look good actually, plenty of them in Perth WA. Plus others of a similar length.

The smallest 2 into one I've had a go at was an Akrapovic on a 103 softail with 204's, it came up pretty good as well. I have dyno chart of that somewhere as he put it in a shootout and sent it to me.

Short shots are tunable, even the decel can be got under control but they are not a great pipe, side shots are surprisingly easy to dial in as well. 

You are right about time though, it takes me at least a day and sometimes 2, a dyno is much quicker and more accurate if it's done right, road tuning is a lot of buggerising around, which is fine if you have the time. Turning into novel, sorry lol.

Google Harley 2 into 1 exhaust images and you lose count pretty quickly.

I have tuned bikes with Bassani Road Rage, D&D Fatcat, Supertrapp Fat Shots, Lakester Side pipes (hard to tune) and others.

A contact in the US who ran the Dyno computers for 5 HD dealerships would email me tunes from his Dyno sessions close to or bang on for each build of cam/exhaust setup etc. Saved me HEAPS of trial and error. I have kept all those Supertuner Pro tunes in my laptop tuning files and have used many of them multiple times over the years.