Exhaust question- Can you?
Thread Starter
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Tourer
Joined: Dec 2010
Posts: 290
Likes: 1
Exhaust question- Can you?
Hi,
Can you add an header pipe, by itself to eliminate the cat and then at a later time do the slip ons and then after that an air cleaner and tune- I guess I am asking if you need to do the tune only when you do the larger air cleaner. In an ideal world I would have the $$$ to do all at once but the fact is I don't and don't want to charge it.
I am thinking the V&H Dresser Duals as I love the way they look and the price is right...
http://www.jpcycles.com/product/443-681
Can you add an header pipe, by itself to eliminate the cat and then at a later time do the slip ons and then after that an air cleaner and tune- I guess I am asking if you need to do the tune only when you do the larger air cleaner. In an ideal world I would have the $$$ to do all at once but the fact is I don't and don't want to charge it.
I am thinking the V&H Dresser Duals as I love the way they look and the price is right...
http://www.jpcycles.com/product/443-681
Go ahead. You don't need to tune for breather and exhaust mods. The o2 sensor will compensate for the added airflow. The ECM may need a few cycles to compensate but it will compensate.
Thread Starter
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Tourer
Joined: Dec 2010
Posts: 290
Likes: 1
I am thinking of getting them from JP Cycles.
Would these be the right ones? It seems like a fair price, I would do the Gold club member and then use the discounts for the slip ons at a later date
http://www.jpcycles.com/product/443-681
Does anyone have any customer service feedback from JP?
Would these be the right ones? It seems like a fair price, I would do the Gold club member and then use the discounts for the slip ons at a later date
http://www.jpcycles.com/product/443-681
Does anyone have any customer service feedback from JP?
Cruiser
Joined: Apr 2011
Posts: 107
Likes: 1
From: Ontario,Canada
Seasoned HDF Member
Joined: Dec 2004
Posts: 7,934
Likes: 43
From: Bloomfield, NM
The addition of the tuner seems to have changed all that. I think that the MoCo has them so lean for EPA that they are just too hot without a tune.
Instead of a new head pipe, you might try just gutting the cat and leaving the factory tune. You will not be getting more air in or out, but you will not be blocking the heat right at the header. This might let the stock load adjust enough. Then take your header money and get a Power Commander V. With the PCV you can have it tuned just for the gutted header, then have changes made as you add your other mods. If you get the PCV from Fuel Moto, they will send you new maps as you add mods for free.
My info is that dresser duals or any other true dual will cost you some bottom end, just like straight pipes do. That is why I went with the gutted cat which is still a 2 into 1 into 2 system. I also read at one of the tuning sites that the diameter and length of the stock header pipe is near optimum for good power.
Just one option.
Bill
Last edited by billnourse; Oct 13, 2012 at 07:57 AM.
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Tourer
Joined: Feb 2012
Posts: 385
Likes: 4
From: Ontario Canada
I thought this too, in fact was told so by the dealer, but I found that the bike was extremely hot while running SE intake and 3 1/2" Rineharts without a tune. In fact, I was experiencing the bike going into heat management when it was real hot and at stop lights. Also there was a lot of detonation.
The addition of the tuner seems to have changed all that. I think that the MoCo has them so lean for EPA that they are just too hot without a tune.
Instead of a new head pipe, you might try just gutting the cat and leaving the factory tune. You will not be getting more air in or out, but you will not be blocking the heat right at the header. This might let the stock load adjust enough. Then take your header money and get a Power Commander V. With the PCV you can have it tuned just for the gutted header, then have changes made as you add your other mods. If you get the PCV from Fuel Moto, they will send you new maps as you add mods for free.
My info is that dresser duals or any other true dual will cost you some bottom end, just like straight pipes do. That is why I went with the gutted cat which is still a 2 into 1 into 2 system. I also read at one of the tuning sites that the diameter and length of the stock header pipe is near optimum for good power.
Just one option.
Bill
The addition of the tuner seems to have changed all that. I think that the MoCo has them so lean for EPA that they are just too hot without a tune.
Instead of a new head pipe, you might try just gutting the cat and leaving the factory tune. You will not be getting more air in or out, but you will not be blocking the heat right at the header. This might let the stock load adjust enough. Then take your header money and get a Power Commander V. With the PCV you can have it tuned just for the gutted header, then have changes made as you add your other mods. If you get the PCV from Fuel Moto, they will send you new maps as you add mods for free.
My info is that dresser duals or any other true dual will cost you some bottom end, just like straight pipes do. That is why I went with the gutted cat which is still a 2 into 1 into 2 system. I also read at one of the tuning sites that the diameter and length of the stock header pipe is near optimum for good power.
Just one option.
Bill
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Seasoned HDF Member
Joined: Dec 2004
Posts: 7,934
Likes: 43
From: Bloomfield, NM
The cat is in the header pipe in the rectangle part of the pipe. There is a weld at each end of the rectangle where it is welded to the pipe going in and out. The cat is 5 1/4" long and the rectangle it sets in is about 7 1/2" long. If you measure in 3/4" from the weld on each end and then cut out a coupon on the outside flat side of the rectangle (2" X 5 1/4" should do it) with a cut off wheel you can pry the coupon off exposing the cat material. Just dig it all out and have the coupon welded back on. You just need someone that can TIG weld. I had a friend do mine, but a welding shop should do it for around 40.00. Heat shields then cover the welds completely.
There also people drilling the cat out. Cheaper, but more work, and I'm not sure that you can get all the material out with a drill. It's in there pretty good.
If you do a search you can find a ton of info on getting the cat out, including an extensive arguement on whether to drill or cut.
I'm guessing you might still want a tuner. These things are just too lean. the plug and play tuners like the PCV with a canned map work pretty well without the need for a dyno unless you are doing some serious mods, and they are not real pricey. 299.00 or so from Fuel Moto, and you get unlimited customer service with them.
https://www.hdforums.com/forum/tri-g...t-removal.html
https://www.hdforums.com/forum/touri...continues.html
Bill
There also people drilling the cat out. Cheaper, but more work, and I'm not sure that you can get all the material out with a drill. It's in there pretty good.
If you do a search you can find a ton of info on getting the cat out, including an extensive arguement on whether to drill or cut.
I'm guessing you might still want a tuner. These things are just too lean. the plug and play tuners like the PCV with a canned map work pretty well without the need for a dyno unless you are doing some serious mods, and they are not real pricey. 299.00 or so from Fuel Moto, and you get unlimited customer service with them.
https://www.hdforums.com/forum/tri-g...t-removal.html
https://www.hdforums.com/forum/touri...continues.html
Bill
Last edited by billnourse; Oct 13, 2012 at 09:41 AM.
Elite HDF Member
Joined: Jul 2008
Posts: 3,524
Likes: 34
From: Maryland
What Bill said. Seen a few threads in here on this subject and at least one of them had a few pics. Another option might be to find a used '09 header. It is the only year the current design didn't have a cat in it.