Hello All,,, Decat the headers?
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3rd Gear
Joined: Apr 2020
Posts: 7
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From: wilmington nc
Hello All,,, Decat the headers?
I have A 2018 Road King Special, living here in the southeast ,parade mode kicks in alot. I'm contemplating decatting the headers to let it run cooler. Has anyone done this yet and is there a difference in performance? The M8 is awesome so I don't want to lose any of its power
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,170
From: SE Michigan
I have A 2018 Road King Special, living here in the southeast ,parade mode kicks in alot. I'm contemplating decatting the headers to let it run cooler. Has anyone done this yet and is there a difference in performance? The M8 is awesome so I don't want to lose any of its power
Even in a stage 1 setup where in theory adding more fuel would *maybe* allow the engine to run slightly cooler, but that wouldn't have much effect on EITMS kicking in.
Whats the problem with EITMS kicking in?
Tourer
Joined: Aug 2019
Posts: 273
Likes: 151
From: Colorado
The engine is not going to run cooler because you de-cat the headers. All that heat is after the exhaust leaves the engine.
Even in a stage 1 setup where in theory adding more fuel would *maybe* allow the engine to run slightly cooler, but that wouldn't have much effect on EITMS kicking in.
Whats the problem with EITMS kicking in?
Even in a stage 1 setup where in theory adding more fuel would *maybe* allow the engine to run slightly cooler, but that wouldn't have much effect on EITMS kicking in.
Whats the problem with EITMS kicking in?
Road Warrior
Joined: May 2017
Posts: 1,801
Likes: 2,310
From: WI
I have A 2018 Road King Special, living here in the southeast ,parade mode kicks in alot. I'm contemplating decatting the headers to let it run cooler. Has anyone done this yet and is there a difference in performance? The M8 is awesome so I don't want to lose any of its power
Performance wise I didn't notice any difference, but it made the bike sound fantastic! If you're running more free flowing slip ons, removing the cat can cause you to lose additional backpressure and therefore losing a bit of low end torque.
Seasoned HDF Member
Joined: Mar 2013
Posts: 11,630
Likes: 990
From: NC
I went with an S&S 2-1 pipe and boy does the bike run great!!
Actually, the reason for the pipe was to cool down the exhaust
some so my wife's leg wouldn't get HOT and red.
It worked for us.
The S&S pipe is around $500 bucks.
An added advantage is you can use slip ons for stock '16 bikes,
meaning you aren't stuck with the big outlet on the right side....
Actually, the reason for the pipe was to cool down the exhaust
some so my wife's leg wouldn't get HOT and red.
It worked for us.
The S&S pipe is around $500 bucks.
An added advantage is you can use slip ons for stock '16 bikes,
meaning you aren't stuck with the big outlet on the right side....
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
I def noticed heat reduction when i did an aftermarket stage 2 on my 17 RGS. FM headers, S&S cam and all, along with a canned tune initially from FM with the power vision tuner. So not sure if alone one part would cause a noticeable heat reduction, but I did noticed a drop. I ride in shorts sometimes in really hot temps and I can tell when the heat on my right leg is much lower.
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