After much research and discussion, I am now contemplating making a few changes to improve mid-range. These are; 1. Replace stock air filter with K&N (Done) 2. Replace fuel injection air inducts with those from R1100RS/RT (wider and allow more rapid air flow) 3. Remove Cat and replace with Staintune (retain OEM exhaust) 4. Replace snorkel with wider one from Boxer Performance or similar. My investigations lead me to believe I can obtain 5-7hp in the mid-range and sacrifice a little torque. Has anyone done this or similar and if so - what were the results. I will complete this work in next week or two and will advise findings.