Been running Guzzitechs o2 optimizer on my B1100 for a couple years now. I put it on because after I put a Mistral Oval can, and pulled the DB killer, the pop off throttle was a bit much. The O2 gadget works pretty well, in fact it did away with 99% of the popping and seems to allow the motor to work more as it should with the open exhaust.
The down side, slightly less gas milage, and an oily drip off the injector linkage from time to time and less than perfect fueling. But at least I could ride without the db and enjoy the sound of the engine easily! But I got to thinking recently after talking with my local wizard tech, and the Wombat humpper from down under, echoing his thoughts, that perhaps I should pull it off and see how it runs?
I did just that. With stock fueling and a modern map, and without a db killer it pops more than I like on warm days. So I put the db killer in and ran it for a few hundred miles and...wait for it....It runs noticeably stronger and with less slop than with the O2 opt/open exhaust. So it runs stronger, has better rideability, and gets better gas milage. The down side, and it's a minor one for me, maybe a bigger deal for others, is the bike is on the quiet side.
I do wish I could have the best of both worlds, but minus a reflash I don't think that's obtainable, so I'm giving up the cheater to gain a better running bike, better milage and more fun for me!
P.S. This is no knock on the
www.Guzzitech.com O2 Optimizer. For a relatively small price this neat little plug and play device allows the use of aftermarket parts that would likely otherwise make ridding some Guzzis very un-fun.
