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Old 10-06-2016, 07:23 PM   #16
kntdrv
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Originally Posted by TwinOaks View Post
The CFR was purpose built for the Revo, designed, tested and sold by a V-Rod owner, for the V- Rod only.
Never knew this….

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Originally Posted by mikeinatlanta View Post
While one pipe will make power differently than another, the idea that one is more difficult to tune is absurd.
The shop I bought the CFR from told me this. Glad I didn't listen cause I love the sound of it and I'm pleased with what my Dyno guy did.
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Old 10-07-2016, 04:20 AM   #17
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Butterfly Chatter eh? I like that.

d.
LOL!! Didn't know what else to call it. There might be a technical name for it, couldn't remember if I once knew, but what do you expect from an ignorant Harley guy? If I had any brains I'd be ridin' a Braap. With 3 A's!
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Old 10-07-2016, 04:21 AM   #18
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The shop I bought the CFR from told me this. Glad I didn't listen cause I love the sound of it and I'm pleased with what my Dyno guy did.
Must be real good for business!!!
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Old 10-11-2016, 08:36 AM   #19
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The CFR was purpose built for the Revo, designed, tested and sold by a V-Rod owner, for the V- Rod only. IMO, it does the best job for the street. I don't know about it being difficult to tune but will only say a "competent" mechanic is key to any tune.
Due to different changes at different times, we've had the bike on the dyno 3 times, the CFR always tunes easy enough IMO. I think a lot of people get confused with the "butterfly" chatter. The butterflys will dance at idle and a lot of people attempt to tune it out. Won't happen.
That is a great description, because that is what is happening at idle, a little bit of 'chatter', but nothing alarming that would cause me to think that there is a mechanical issue anywhere. However, once the throttle is engaged, it is smooth sounding all the way through.
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Old 03-15-2017, 04:14 PM   #20
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Further back in this thread, I saw somebody writing that ,with EFI, any exhaust change requires a tune . Ive had a handful of bikes which definitely didn't need a retune after putting cans on e.g XJR1300, Speed trifle, Sprint 1050.
* I am not doubting that it applies to these bikes though, It's just not always the case.
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Old 03-18-2017, 04:43 AM   #21
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Further back in this thread, I saw somebody writing that ,with EFI, any exhaust change requires a tune . Ive had a handful of bikes which definitely didn't need a retune after putting cans on e.g XJR1300, Speed trifle, Sprint 1050.
* I am not doubting that it applies to these bikes though, It's just not always the case.
True to a point, however this thread is V-Rod specific. Some stock tuners have a wider range than others and can cover "some" small changes, but I would always want to be 100% sure. Not worth the risk. You can also run the tuners limits to the edge as well and have nothing left for hot/cold, ect..
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