Thanks Grump, for the reply.
My '05 BA has been tweeked to where there is a noticable difference from stock. It did lower my mileage by about 5mpg, but the extra power and sound is worth it. I'll watch the rpms (I do have a tach) and see what a 500 rpm drop would be like. There seems to be plenty of power in the low gear range with the 17T. I may have to try the 18 as I would like a higher gear on the top end and it might bring the mileage back up.
Bob
