I've always had a problem with hanging revs when coming to a stop. For 12 months off and on I've had the bike back to the dealer for a re-tune to try and get rid of the problem. About 5 months ago I had the stock plastic intake manifold replaced with a 55mm Screamin Eagle aluminium intake manifold, It was tuned again but still no good, revs were still hanging.

The other day I had the OEM headers put back on with Rinehart black slip ons and a re-flash carried out to suit. Well what a surprise when I rode it home, the problem was gone, now when I come to a stop the revs drop immediately to idle. With this setup the bike now performs heaps better than with the TBR exhaust. It's now got a deep classic rumble, not crazy loud like the TBR but still loud. I'm over the moon with it and I probably should've gone with this setup from new.

The chief technician told me even though the TBR is a good pipe the M8's are very sensitive to changes in the O2 sensors and on some engines the pipe works well and others not so much. Apparently the TBR comp-s being a short pipe some fresh air can be sucked back up the pipe upsetting the O2 sensors causing all sorts of strange problems. I'm glad it's all fixed now after a year of stuffing around. The bike goes in for a Dyno next week just to clean up the mapping, it will be interesting to see how much better the ride will be.  Safe riding to all. ?