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Old 03-06-2017, 07:37 PM
Michael Henning Michael Henning is offline
Join Date: Jun 2011
Location: Nashua, NH
Posts: 453

4/4 is 4 pipe
Exhaust with 4 exits (straight[though a little curved]pipes).
RV-4 #2750
WW150C Prop
1018 lbs
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Old 03-07-2017, 06:23 AM
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daddyman daddyman is offline
Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 201
Default Thats what I have

Originally Posted by RONSIM View Post
Has anyone done the 4 into 4 exhaust on a -4? and, if so, any issues on the install?


Mine is a Vetterman 4 into 4.
I really like the distinctive sound.

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Old 03-07-2017, 11:41 AM
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RONSIM RONSIM is offline
Join Date: Feb 2008
Location: Largo, FL
Posts: 797
Default We installed the 4/4 --- does sound good

Install went well since the owner has no heater muff or carb heat muff. A little adjustment was necessary because the owner failed to notify the vendor that a gascolator was on the lower left firewall.

RV-10 Co-built (sold)
RV-8A Maintained and flown (Sold)
RV-6A Bought and Flying (N177RV)
IO360, 180HP/CS, AFS 5600T, G650, VIZ385
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Based at KCLW (Clearwater, FL)
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