Well, it seems this site leans more toward the modern Monsters, but figure I'd share what I did anyways in case other folks with S2R 800s come looking for info...
I finally got my DP midpipes from Germany (pn# 979A00105). Installed them today. They weren't the pipes I was expecting. I thought they were going to be a complete header+midpipe (one unit), but they tap into the existing headers and just delete the cat instead. I'm confused now as to what the pn is for the full headers, and I can't find them in the parts catalog from 2007... But, w/e. All I really wanted was to delete the udder. Worth noting: DanMoto cans don't fit very well with the DP midpipes. The spacing is not quite right. Makes them sit too tight on top of each other. Might take them to a zaust shop to see if they cant bend them a little more for me. But, they're good enough for now.
Anyways, got the cat deleted, opened up the airbox, popped in a K&N filter, and tuned the ECU to the 2219PZ10 DP map. Reset the TPS. The bike runs great! Idles fine, low-end is a little less luggy, more responsive, and WOT is ridiculous. Between the open intake and open midpipes it's raucously loud
. Earplugs are now a must, but I really like the sound. Beastly. It pulls hard to redline, but then again, it did before all of the mods. I can't really tell how much of a difference everything made, tbh. It's not like all of a sudden the front wheel wants to jump up, but the bike runs smooth and pulls really well and sounds badass. The real test would be a dyno, but eff that.
I'll check the plugs after my next riding day and see what the mixture is looking like. I might also plug in the TuneEcu and record a few freeway pulls to see how the trims are doing throughout the throttle band. TuneECU is fucking great btw. For $10 + a few dongles, you have full control of the ECU. Stoked.