How noticeable??
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
Increasing flow into the motor and out of it (hi flow air cleaner, no cat headers and freer flowing ( which does not always mean loud, you can have flow and control sound at the same time) mufflers
will result in 7 to 10 horsepower performance gain. ( this is the least expensive power gain you will ever get from your bike)
most bikes will need to adjust fuel mixture to take advantage of the extra air coming in. I use nightrider.com XIEDS. they plug right in to the o2 sensors, $125 shipped
other riders use other products.
catalytic converters need heat to do the job- and riders who remove the cat should see some heat decrease.
slightly enriching the air/fuel mixture will also reduce heat.
but keep in mind you are sitting with a big motor between your legs
Mike
will result in 7 to 10 horsepower performance gain. ( this is the least expensive power gain you will ever get from your bike)
most bikes will need to adjust fuel mixture to take advantage of the extra air coming in. I use nightrider.com XIEDS. they plug right in to the o2 sensors, $125 shipped
other riders use other products.
catalytic converters need heat to do the job- and riders who remove the cat should see some heat decrease.
slightly enriching the air/fuel mixture will also reduce heat.
but keep in mind you are sitting with a big motor between your legs
Mike
Last edited by mkguitar; Sep 26, 2011 at 11:39 AM.
Tourer
Joined: Jul 2011
Posts: 299
Likes: 1
From: Ct.
Yes you will get a lot of responses,
My opinion,
if you are doing it for powergain, you will not be satisfied.
if you are doing it to get rid of the obnoxious amount of heat felt on right side of bike, you will be more than satisfied.
if you are doing it for sound, you will be pleasantly satisfied for the price...
My opinion,
if you are doing it for powergain, you will not be satisfied.
if you are doing it to get rid of the obnoxious amount of heat felt on right side of bike, you will be more than satisfied.
if you are doing it for sound, you will be pleasantly satisfied for the price...
Extreme HDF Member
Joined: Dec 2006
Posts: 10,045
Likes: 36
From: ST. Louis
Yes you will get a lot of responses,
My opinion,
if you are doing it for powergain, you will not be satisfied.
if you are doing it to get rid of the obnoxious amount of heat felt on right side of bike, you will be more than satisfied.
if you are doing it for sound, you will be pleasantly satisfied for the price...
My opinion,
if you are doing it for powergain, you will not be satisfied.
if you are doing it to get rid of the obnoxious amount of heat felt on right side of bike, you will be more than satisfied.
if you are doing it for sound, you will be pleasantly satisfied for the price...
Road Warrior
Joined: Jul 2010
Posts: 1,816
Likes: 2
From: New Hampshire
I have a headpipe in my garage that has had the cat removed. Ever since I put the stock ac back on I have unleashed the heat monster. Im thinking of having this headed thrown on and tryinging out the xieds. Never noticed the heat all summer until the stock ac went back on...now it is an oven lol
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Outstanding HDF Member
Joined: Jun 2011
Posts: 2,023
Likes: 6
From: New Jersey
Frankly, I don't understand the heat issue. I have stock head pipes and stock air kit on my 2011 SG and I don't notice the heat any more now than I did on my 2006 Road Star, which had a 103CI air-cooled motor and a 2-1 Roadhouse Classic exhaust system!
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Outstanding HDF Member
Joined: Jan 2011
Posts: 2,590
Likes: 31
From: Western Illinois, land of bad roads, and corrupt politicians
+1 I went from a 2005 Road Glide to a 2011 Road Glide. I don't have any more heat with the new one than the old one. I also had a 2005 FXST.... same heat. I also had an EVO Softail, and an old Pan Head.
Sitting at a stop light and they are all hot.
I rode a friends 2011 Ultra Classic with all the wiz-bang mods to lower the heat. I think he spent a couple grand on pipes, tuner, AC, etc. The heat feels the same as my stock Road Glide.
But this should be noted...... I get 50MPG and he gets 38. Before he had all the mods done, he was getting 47.
Last edited by shooter5074; Sep 26, 2011 at 12:52 PM.
Tourer
Joined: Jul 2011
Posts: 299
Likes: 1
From: Ct.
+1 I went from a 2005 Road Glide to a 2011 Road Glide. I don't have any more heat with the new one than the old one. I also had a 2005 FXST.... same heat. I also had an EVO Softail, and an old Pan Head.
Sitting at a stop light and they are all hot.
I rode a friends 2011 Ultra Classic with all the wiz-bang mods to lower the heat. I think he spent a couple grand on pipes, tuner, AC, etc. The heat feels the same as my stock Road Glide.
But this should be noted...... I get 50MPG and he gets 38. Before he had all the mods done, he was getting 47.
Sitting at a stop light and they are all hot.
I rode a friends 2011 Ultra Classic with all the wiz-bang mods to lower the heat. I think he spent a couple grand on pipes, tuner, AC, etc. The heat feels the same as my stock Road Glide.
But this should be noted...... I get 50MPG and he gets 38. Before he had all the mods done, he was getting 47.
And the heat eminating from the headpipe preremoval was unbearable during a long ride....
On a recent trip to the cape we literally had to pull over and I had to put my wife in the car with my father.
This never happened on my suzi.
Im not complaining, but to say it doesnt exist, or that you dont notice it.... wow.....
I fixed my heat issue. A heat issue that was there.