OEM Exhaust
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Tourer
Joined: May 2008
Posts: 460
Likes: 0
From: Southern Maryland
OEM Exhaust
While at Deals Gap I ran into another rider who had "true dual" on his RKC from what I saw the only difference aside the dia. is bigger is the cross over pipe on the rear engine was removed. \\; My question are: \\; \\; What benefit \\;does that cross over have since all it does is dump exhaust from the rear engine to front engine pipe? \\; What benefit will it have to remove that from \\;from the OEM exhaust and just have slip on's? \\; thank you in advance.
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[IMG]local://upfiles/61626/57C850081B1B433F95B9807A14E54EA2.jpg[/IMG]
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[IMG]local://upfiles/61626/57C850081B1B433F95B9807A14E54EA2.jpg[/IMG]
Cruiser
Joined: Oct 2007
Posts: 176
Likes: 0
RE: OEM Exhaust
When I switched to TDs, I noticed a little loss of torque in the low RPM range due to decreased back-pressure. \\; The tradeoff was well worth it as once you get into the 3000 RPM range, the motor is noticeably stronger. \\;
Road Captain
Joined: Oct 2007
Posts: 513
Likes: 2
From: Coconut Creek, FL
RE: OEM Exhaust
My reason for switching was the heat issue. That crossover builds and holds a lot of heat that seems to radiate directly to your right thigh/crotch area. I noticed a slight drop in low end torque but nothing anywhere close to what I had expected after reading a lot of info on here. To me, switching over to the TD's was the best mod I could have done without major engine work. I couldn't be happier with the results. My bike runs better, runs way cooler and sounds fantastic.
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
RE: OEM Exhaust
ORIGINAL: roadking1893
While at Deals Gap I ran into another rider who had "true dual" on his RKC from what I saw the only difference aside the dia. is bigger is the cross over pipe on the rear engine was removed. \\;\\\\\\; My question are: \\;\\\\\\; \\;\\\\\\; What benefit \\;\\\\\\;does that cross over have since all it does is dump exhaust from the rear engine to front engine pipe? \\;\\\\\\; What benefit will it have to remove that from \\;\\\\\\;from the OEM exhaust and just have slip on's? \\;\\\\\\; thank you in advance.
 \\;
While at Deals Gap I ran into another rider who had "true dual" on his RKC from what I saw the only difference aside the dia. is bigger is the cross over pipe on the rear engine was removed. \\;\\\\\\; My question are: \\;\\\\\\; \\;\\\\\\; What benefit \\;\\\\\\;does that cross over have since all it does is dump exhaust from the rear engine to front engine pipe? \\;\\\\\\; What benefit will it have to remove that from \\;\\\\\\;from the OEM exhaust and just have slip on's? \\;\\\\\\; thank you in advance.
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True duals loose some low RPM torque due to the loss of the scavenge effect, but make up for it at higher RMP's because they usually have less restrictive mufflers. \\; True duals will spread the heat from the rear cylinder &\\; the cross over pipe a little more evenly, &\\; so reduce the heat problem on your right leg. \\; A 2 to 1 pipe with the rear cylinder exhaust bent forward will do nearly the same thing while keeping the performance of the scavenge effect, but you loose the balanced look of dual exhausts. Everything is a trade............<\\;shrug>\\;
Road Warrior
Joined: Dec 2006
Posts: 1,716
Likes: 8
From: General Sherman's Christmas Location 1864
RE: OEM Exhaust
SAME THING..VERY LITLE TORQUE DROP BUT VERY BIG DIFF IN HEAT ON THE LEG.
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I HAVE 'CORED" STOCK MUFFLERS AND THE SOUND DID INCREASE BY ABOUT 20% LOUDER
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I HAVE 'CORED" STOCK MUFFLERS AND THE SOUND DID INCREASE BY ABOUT 20% LOUDER
Thread Starter
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Tourer
Joined: May 2008
Posts: 460
Likes: 0
From: Southern Maryland
RE: OEM Exhaust
Don't want to sound cheap or anything but since I have collect several fabrication tools I was thinking of removing the cross over pipe from the OEM exhaust. \\; From studying it I should be able to cut it off and weld it shut and still be able to cover that area with the crome heat shield.
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
RE: OEM Exhaust
ORIGINAL: roadking1893
Don't want to sound cheap or anything but since I have collect several fabrication tools I was thinking of removing the cross over pipe from the OEM exhaust. \\;\\\\\\; From studying it I should be able to cut it off and weld it shut and still be able to cover that area with the crome heat shield.
Don't want to sound cheap or anything but since I have collect several fabrication tools I was thinking of removing the cross over pipe from the OEM exhaust. \\;\\\\\\; From studying it I should be able to cut it off and weld it shut and still be able to cover that area with the crome heat shield.
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Elite HDF Member
Joined: Jan 2007
Posts: 4,020
Likes: 69
From: Twin Cities, MN
RE: OEM Exhaust
Not all years have different mufflers. \\; Some years thay are the same. \\; But check anyway.
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Outstanding HDF Member
Joined: Jul 2007
Posts: 2,609
Likes: 1
From: Indy area
RE: OEM Exhaust
ORIGINAL: Pumba11
Not all years have different mufflers. Some years thay are the same.
Not all years have different mufflers. Some years thay are the same.