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Author Topic: CFR Slip ons  (Read 8580 times)

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2BAGGR

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CFR Slip ons
« on: September 27, 2015, 10:08:11 PM »
Anybody know how these slip ons sound with true duals?
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Para Bellum

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Re: CFR Slip ons
« Reply #1 on: September 28, 2015, 02:57:25 AM »
Yes.  A riding buddy has them on his.  They are loud and deep (bass), with no raspy sound.  You will lose some low-end torque with them.
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Cvostu

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Re: CFR Slip ons
« Reply #2 on: September 28, 2015, 03:29:03 AM »
Loud!! :o
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Jswerve

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Re: CFR Slip ons
« Reply #3 on: September 28, 2015, 05:50:00 AM »
Loud. Annoying. And horrible to tune. Oh yeah and overpriced.

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ptnlinda

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Re: CFR Slip ons
« Reply #4 on: September 28, 2015, 06:12:03 AM »
I have a set on my 2015 CVO Limited with FuelMoto Jackpot pipes, Thunder City Baffles & Thundermax. Love them. Tune is good with Thundermax and sound great.
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Para Bellum

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Re: CFR Slip ons
« Reply #5 on: September 28, 2015, 09:53:19 PM »
Forgot to mention--buddy who has them has stock 103 engine, SERT, and V&H tru-duals.  According to him, tuner had no problem getting it tuned.  I've seen his dyno sheet, and it looked good.  Buddy later added Thunder City QQ baffles.
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2BAGGR

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Re: CFR Slip ons
« Reply #6 on: September 28, 2015, 10:53:42 PM »
Quote from: Para Bellum on September 28, 2015, 09:53:19 PM
Forgot to mention--buddy who has them has stock 103 engine, SERT, and V&H tru-duals.  According to him, tuner had no problem getting it tuned.  I've seen his dyno sheet, and it looked good.  Buddy later added Thunder City QQ baffles.

Para Bellum....    Is that a baffle that goes inside the head pipe?
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Para Bellum

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Re: CFR Slip ons
« Reply #7 on: September 29, 2015, 12:20:30 AM »
Quote from: 2BAGGR on September 28, 2015, 10:53:42 PM
Para Bellum....    Is that a baffle that goes inside the head pipe?
Yes, that's the one.  It's supposed to decrease the sound level, while also helping with low end torque.  We agree there's about a 10% decrease in sound (so, not very much), and some increase in torque.  Here they are:  https://www.bigcitythunder.com/component/content/article/10-product/15-qq-thunder-monster-baffles.html
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Cat Eye

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Re: CFR Slip ons
« Reply #8 on: September 29, 2015, 01:51:20 PM »
Quote from: Jswerve on September 28, 2015, 05:50:00 AM
Loud. Annoying. And horrible to tune. Oh yeah and overpriced.

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Jswerve

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Re: CFR Slip ons
« Reply #9 on: September 29, 2015, 02:09:06 PM »
Quote from: Cat Eye on September 29, 2015, 01:51:20 PM
What?  You know my x-wife?
God I hope not lol

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johnsachs

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Re: CFR Slip ons
« Reply #10 on: September 29, 2015, 06:51:58 PM »
Tune Good???
What do you do to remove the horrible torque dip ?  :nixweiss:
John
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Para Bellum

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Re: CFR Slip ons
« Reply #11 on: September 29, 2015, 08:06:02 PM »
Quote from: johnsachs on September 29, 2015, 06:51:58 PM
Tune Good???
What do you do to remove the horrible torque dip ?  :nixweiss:
John
Not sure who you're asking, but in my buddy's case, there was no "dip" in the curve like we often see with other systems, but the low RPM (up to ~ 3k RPM) torque curve was lower than with previous mufflers.  I guess that would be considered a dip that affected the entire curve.
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2BAGGR

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Re: CFR Slip ons
« Reply #12 on: September 29, 2015, 11:32:17 PM »
Quote from: johnsachs on September 29, 2015, 06:51:58 PM
Tune Good???
What do you do to remove the horrible torque dip ?  :nixweiss:
John
   

Is that because the large baffle? 
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TorqueInc

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Re: CFR Slip ons
« Reply #13 on: October 01, 2015, 05:23:56 PM »
  The combination of the true duals and CFR's is going to be hard to tune and good tune or not is going to kill the low rpm torque

  The CFR copies made by some Chinese outfit along with DNA ? I think don't seem to be quite as bad but no matter what the TD exhaust isn't going to help.

  It will sound good tho
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2BAGGR

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Re: CFR Slip ons
« Reply #14 on: October 02, 2015, 01:44:56 AM »
Quote from: TorqueInc on October 01, 2015, 05:23:56 PM
  The combination of the true duals and CFR's is going to be hard to tune and good tune or not is going to kill the low rpm torque

  The CFR copies made by some Chinese outfit along with DNA ? I think don't seem to be quite as bad but no matter what the TD exhaust isn't going to help.

  It will sound good tho


Would they work better with Vance and Hines Power Duals?
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