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  • Baron Posts: 13
    Melbournes Westside.
    Stock Poster Baron
    12 Mar 2020 03:24 PM
    Hi all, I just thought I would share a problem I've had since new. My bike was fitted with a stage 2 torque cam and TBR 2 into 1 comp s exhaust from new. 

    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. ?  
  • Birtyyy Posts: 194
    Sunshine Coast
    Stock Poster Birtyyy
    22 Jun 2020 09:24 AM
    I've never heard of this kind of thing happening before. I have the Bassani Road Rage II on mine which is only slightly longer than the TBR and have had no issues but I was looking at shortening it. Might not go that route now.
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