ECU and airbox upgrades advice appreciated

[Gumby 1100_imp]

I've read many comments on the forum about poor fuelling, poor idle, erratic running, etc., but I guess I got a good one because mine couldn't be smoother or have better manners in traffic or at highway speeds.
It's an absolute joy to ride.
Don't misunderstand me, I'm not gloating, just commenting

Rocky,

I really didn't have any problems either...no surging or poor idle, but the "Plug" greatly improved what I already had! Now there is no loss of power after warming up because the fueling doesn't get leaned out...I'm thinking that the "Plug" may even prevent the ECU from retarding the timing after warm-up (speculation only).

With the "Plug", the reduction in engine braking really helps with slow speed driving allowing you to be much smoother. It has been noted that a deft use of the clutch also helps with slow speed maneuvering, but with the "Plug", that is one more thing you don't have to worry about.

I have nothing to gain suggesting the use of the "Plug"...just a happy customer. It should also be noted that a small number have felt that it didn't make much difference to their style of riding. Of those, I think that some may not have installed it correctly, or didn't install One for Each 02 Sensor (2 are required on the DLX). For only $20 each you have little out of pocket...and it is easily and harmlessly reversible. But, for the majority who installed a "Plug", it is possibly the "biggest bang for your buck" that you will find for the CB1100.

...sorry, didn't mean for this to read like an infomercial