Bonneville America Forums Forums Technical Forums Exhaust Switch from TORs to 19" slash cut emgo, remap?

Purchased my first Triumph this April, 2006 America had stock mufflers on it and needed a change. Read up all I could on these forums and thought TORs were what I wanted. Picked up a used pair off of eBay along with a stage 1 dynojet kit and had the dealer install it for me as well as AI removal.

Ran it all summer with the TORs and liked it... didn't love it. So started the search again this fall. Didn't want to spend a fortune and heard decent things about Emgo. Picked up a new pair of 19" slash cut for about $50 each http://www.amazon.com/gp/product/B007Y9L...ailpage_o01_s00 and thought I would give it a whirl and install it myself this time.

I am so glad I took the chance on these, I wasn't a fan of how short they are since I like the look of long pipes but these have changed my mind. These are louder than the TORs and much deeper tone you can feel in your chest which is what I was looking for. I have a friend with a Harley Night Train with straight pipes and after comparing it, I would say it is just under the loudness/deepness of the Harley but not by much. It while riding when you put the throttle on it does sound very angry. Not completely obnoxious however closely verging on it.

Very simple and easy installation as well, mounting bracket slides and can be bolted right into the frame on the America with a pair of longer bolts.

Which bring me to my question, will this require another remap or jetting? The emgo still have baffles in them, however with the shorter length it has me overthinking. I have ridden to work and back with no issues as of yet, so hoping it is good to go, but your reassurance would be much appreciated.

I will post a video with sound soon, but I feel it won't do it justice so anyone in the Minnesota/Wisconsin area who would like to meet, feel free to PM me.

Thank you.

I would think that you would have to reject the carbs. Check the vault and look under the intake and carbs section. There is a link to Dinqua's site or pats triumph site. A carbs jetting calculator can be found input the specs and it with tell you the carbs jetting size. At that site information is also available for doing the carbs yourself. Hope this helps you out.

Not sure about rejetting since I have an EFI America, but did you feel you needed to attach them to the supports? I have the turnout variation to those pipes - and they just attach to the header and are very secure without any other mountings.

I like the idea of the baffle inside - the turnouts have no baffle and they are pretty obnoxious without anything. Had to go with some steel wool packed into the ends next to the header to quite them down a bit.

https://www.icloud.com/sharedalbum/#B04JtdOXmJRErY9

Drew, I would think for "optimum" tuning you would need to re-jet, change needles/clips & maybe slide springs. But, as you stated it is already jetted for TORs. You are probably fairly close with the jetting, just not spot on.

edit: I am guessing there have been no mods to the air intake side of the equation.

Did the dealer put the off road tune (re-map) in it since it is fuel injected? If it is FI it doesn't have jets or carbs. You might be able to get by with what he already did. Does it seem to be running good and smooth no hiccups or bad backfiring? I've never heard of Emgo pipes. Could they be EPCO?

06 US model is still carbs is it not? Re-jet for sure. Probably 45 to 48 pilot and 135 to 155 main both depending on your elevation and what has been done to the intake, if intake is still stock then the low end as not as much air is getting in. Don't forget to balance and adjust the mixture when jetting.

Yeah I didn't think they went to FI until 2008. I got him confused with MuckSavage. Same advice goes though. If the dealer re-jetted when he went to the off roads he may not have to re jet again. If not it will probably be needed.

Awesome info guys. Yes my 06 Is still carbed. Muck savage, the extra mount to the frame is probably a bit overboard but it just gives me peace of mind, I agree though the header really tightens down good and with the shorter length I'm sure it's fine.
The dealer recommended the stage one dyno jet with the TORs and they did the AI removal at the same time. I don't recall anything else they said or may have done unfortunately.
I've probably put on around 100 miles and I haven't noticed any backfiring, rough idle or issues. Is was should I be looking out for if I haven't remaped yet. It's so close to winter I may just run it as is and once winter hits it'll be a good project to try out myself.
Thanks again for all the advice and replies. How do I go about adding pictures or video? Do I need to upload it to another site and paste the link?

For now I think you should ride and enjoy it

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Thanks again for all the advice and replies. How do I go about adding pictures or video? Do I need to upload it to another site and paste the link?

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And yes, it is easiest to post your pics on any one of the hosting sites(Flicker, photobucket...). Then link to the pic from here or any other internet forum you participate on.

Ok here are pictures for those that are curious. I will try to get a video up soon too for sound comparison.

https://www.flickr.com/photos/135134836@N06/shares/z75u53

Hey Drewloo - any chance you could snap a pic of the end of the pipe? Curious how the baffle looks in those things. Been considering those pipes since my turnouts don't have a baffle and they are a little obnoxious. I have to pack them with steel wool so they don't piss off the neighbors too much.

Sorry for such a delay MuckSavage, kept forgetting to take a picture until it was too dark. Here is a shot of the inside. Not a lot of baffle but just enough I'd say.

https://flic.kr/p/z6wE2G

Great, thanks for that!

I have had the same turn outs as MuckSavage on my 2007 (I got them the spring of 2008) and with no real baffle to speak of, you need to rejet the carbs. Those you have, seem to have a baffle, so you may not be as off as I was when I changed from stock. I would still look into it. Who doesn't want their bike running its best.

MuckSavage, you can buy baffles to bolt in to those pipes. I shot flaming balls of steel wool down the highway once. I've left them empty ever since. I have considered adding the baffles, but I'm not there yet.

This may be a silly question but have you pulled a plug and looked at it? Back in the dark ages we'd have a peek to insure we weren't running too lean; my guess is that going from TORs to turnouts you won't be too rich.

I ended up putting some 4" baffles in my headers (the wouldn't fit into the pipes themselves) and I also am using some stainless steel wool - great combination and makes them not so obnoxious.

When that Stainless Wool blows out, try 3/4" fireproof woodstove door sealer rope. I'm getting good results and longevity with the rope so far.

I'm with Roadie on this, pull the plugs and ck , they will tell you what you wanna know. Sounds like it's good though from what you said about the way it's running. Still I'd ck plugs .

If you are running modern ethanol fuel the plug check is very hard to read since they don't color like they used to. Don't go by the way it's running since a dangerously lean engine will run great until the damage is done.