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Old 06-13-2013, 11:29 AM   #29
fab410
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How would i fix the exhaust rattle noise??? I have an aftermarket exhaust and it still rattles at idle & low speeds
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Old 06-13-2013, 12:33 PM   #30
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Originally Posted by pannhead51 View Post
So was the sound louder/better ?

Well, As long as you have the AFM active it does make some odd noises when it kicks in. For me the engine seemed to exhale a bit less restricted, but not worth it as long as AFM is active.
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Old 06-13-2013, 12:35 PM   #31
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How would i fix the exhaust rattle noise??? I have an aftermarket exhaust and it still rattles at idle & low speeds

The dealer will simply install two "O" rings around each spring. The source of the rattle noise is the spring it self. So their solution is to put two o rings around each spring which keeps it from bouncing back and forth when they are closed (not under tension).
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Old 09-10-2016, 08:53 PM   #32
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I had the same problem thought it was an exhaust leak I had mine removed it sounds like its flowing 10 times better there is definitely a noticeable difference in sound a little more volume and aggressive tone I recommend this if you are considering
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Old 09-11-2016, 07:15 AM   #33
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I had the same problem thought it was an exhaust leak I had mine removed it sounds like its flowing 10 times better there is definitely a noticeable difference in sound a little more volume and aggressive tone I recommend this if you are considering
How did you have them removed? Did you have that small section cut out and reinstall and weld in a straight tube? I would like to get rid of them also. AFM has been tuned out and these make noise at idle and very low rpm. Annoying.
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Old 09-13-2016, 01:40 PM   #34
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We put a Magna flow axleback exhaust on our 2013 Vert. The valves were removed with the rest of the stock mufflers.
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Old 10-02-2016, 11:59 PM   #35
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I would recommend wiring or welding the valve open - really improves the overall sound (and an occasional poping at startup).
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Old 11-08-2016, 01:53 PM   #36
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So with these removed or defeated is the drone inside the vert increased that much? Does anyone have any sound recordings before and after defeating them at idle, at cruising speeds both inside and outside their vert.

Last edited by teecee; 11-08-2016 at 02:04 PM.
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Old 11-12-2016, 11:42 AM   #37
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So with these removed or defeated is the drone inside the vert increased that much? Does anyone have any sound recordings before and after defeating them at idle, at cruising speeds both inside and outside their vert.
The sound is just a bit nicer (no Drone), but the coffee grinder noise from the AFM is much more annoying. So find the best way for you to get it deactivated
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Old 11-28-2016, 10:38 PM   #38
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The sound is just a bit nicer (no Drone), but the coffee grinder noise from the AFM is much more annoying. So find the best way for you to get it deactivated
Good to know. Thanks.
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