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  • P8ence Posts: 11
    Perth, WA
    Stock Poster P8ence
    27 Sep 2019 06:51 AM
    Hey looking for reviews on the blow exhaust? Website says lots of nice biast performance, but want to know if its worth the swap over from V&H big shots?

    TIA
  • Krash Kinkade Posts: 2703
    Forum Legend Krash Kinkade
    29 Sep 2019 07:26 AM
    Quoting P8ence on 27 Sep 2019 06:51 AM
    Hey looking for reviews on the blow exhaust? Website says lots of nice biast performance, but want to know if its worth the swap over from V&H big shots?

    TIA
    I just looked at the Blow Ex , I doubt there would be much difference if any. they look a bit shorter. would depend on the type of silencer they use. but with that type of pipe any silencer will kill power. just my two cents
  • Ratbob Posts: 1096
    Adelaide Hills
    Performance Poster Ratbob
    29 Sep 2019 10:10 AM
    Sorry mate no direct experience but I agree with Krash. 
    They are an old fashioned stepped drag pipe just a bit bendy to look modern. 
    Something to note is that their  blurb and dyno charts focus on top end power over everyday rideability (is that a real word) which relies as much on early torque as later power. Depends if you like lots o revs and whether your bike’s cam suits that style of riding i.e. putting these pipes on say a twin cam cvo with it’s 255 torque cam wouldn’t be the best match.
    Might not concern you but I reckon they’ll be a bit of a cop magnet. I read they claim 103dB at 2,500 rpm (3 times louder than legal) and based on my experiments with V&H baffling, you’ll probably get 120dB under acceleration which is 5.6 times louder again. (applying the 3dB rule). 
    Still, looks might win.  I did fit V&H big radius to my CVO 110, loves the look but hated the noise and most of all, I could feel the drop in early torque performance. 

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