February 17th, 2012, 09:51 PM | #1 |
ninjette.org sage
Name: Byron
Location: Reno, NV
Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761
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two brothers ex
Hey guys deciding if i want to change out my exhaust or not. Especially if its going to be really loud. Anyone have any experience? and any increase in power?
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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February 17th, 2012, 09:56 PM | #2 |
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Not much increase in power. A little, but that's likely from my jetting changes that I did at the same time, not the pipe. Great sound. Very lightweight. A little loud though. They're kinda annoying when riding home at 1:00 in the morning and you want to be quiet, or when you have a headache and don't like loud noises. Ear plugs are a must.
Here's what my bike sounds like. This is with P2 powertips installed. They really do make a beautifully low and rumbly sound without them though. pardon the shady vid. I'm working on finding a good camera mount. Just bought a new one. I'll test it out in the spring |
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February 17th, 2012, 10:10 PM | #3 | |
ninjette.org sage
Name: Byron
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Quote:
And cool vid. gopro?
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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February 17th, 2012, 10:55 PM | #4 |
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No it doesn't come with power tips. Had to buy those extra. Trust me, it's a lot louder than stock. You can hear me from a ways off when I rip it open... Like a 1/4 mile. It sounds even better with an opened up intake I'll try and find some other videos for you so show how it sounds in a ride by. If I still have it...
Nope. It's a Flip UltraHD. If I had known about the GoPro when I bought this, I would have gotten that instead. So many more options for mounting. |
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February 17th, 2012, 11:15 PM | #5 | |
ninjette.org sage
Name: Byron
Location: Reno, NV
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Quote:
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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February 17th, 2012, 11:18 PM | #6 |
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I haven't gotten in any trouble because it's really no louder than any other sport bike with a can. But I will say even without the powertips, it was significantly quieter than my buddy's ex500 with gutted cans (basically straight pipe) and sounded throatier without having a tin-like, overly bright tone quality. video is uploading hang on
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February 17th, 2012, 11:29 PM | #7 |
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there's a pretty good pause between my ride-bys because I had to find a spot to turn around, so just sit back and enjoy the sounds of the birds and the woods in July in NE Ohio
Link to original page on YouTube. |
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February 18th, 2012, 12:02 AM | #8 | |
ninjette.org sage
Name: Byron
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Quote:
And great vid btw ha camera is really nice. And great area too. If i showed a video from over here would be more cactus and rocks than birds and trees lol. Any vids with the intake modifications?
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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February 18th, 2012, 12:15 AM | #9 |
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I try to avoid highways for long distances because I think they're boring, and I like back road/overland routes better. But for the 30-45 minute trips on the freeway that I've taken, it was fine. The wind is still loud, but at least I can hear my own bike when I ride the freeway now
Sadly, no videos of if with the intake lid opened up. I did that over Thanksgiving break, and I forgot to bring my camera home with me then I'll hopefully get some video over spring break if it's warm enough to ride, because I want to test my new mount. Basically, the sound is more full and deeper from within the bike, rather than just farting out the back. You know what pods sound like. Add that sound to the exhaust in your mind. |
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February 18th, 2012, 10:30 AM | #10 | |
ninjette.org sage
Name: Byron
Location: Reno, NV
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Quote:
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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February 18th, 2012, 10:39 AM | #11 |
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Well that explains our gearing. You're running 15/42, and I'm running 14/47
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February 18th, 2012, 02:40 PM | #12 |
Accesories Guru
Name: Dave
Location: Centreville, VA
Join Date: May 2011 Motorcycle(s): '99 EX250(Cafe/fighter project) Posts: 537
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I'm looking to get a full 2 bros with the same cans that you have chone, but I dont seem to find one to save my life. Where did you buy yours?
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February 18th, 2012, 03:14 PM | #13 |
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Sorry Dave, no full system here. Just slip-ons
But they do improve the top end a little bit. Combine that with this modification (my cut-outs are a little cleaner looking than that) and the result is that I bought some 108 main jets to test this spring because I think the top end is lacking, even though the mid range was perfect with a richer mix. So obviously they do something for the bike besides just cause ear-gasms, because Timon says the bike was good with stock mains and the intake lid modded. A full system doesn't really have a large of an effect on our bikes vs slip-ons since there's no cats in the headers on pre-gens that are removed by a full system like there are on the new bikes. The biggest addition a full system gives is less weight. At least that's what I've been told... here's the official product listing on www.twobros.com. I got mine on ebay for under 300, so don't buy directly from Two Brothers unless you want to pay $419 |
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February 18th, 2012, 03:46 PM | #14 | |
Accesories Guru
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Quote:
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February 18th, 2012, 04:18 PM | #15 |
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I've never seen them in anything other than polished aluminum.
All that work on your bike and you're going to pay someone else to jet it for you?? Personally I just have needles shimmed out with washers instead of getting adjustable needles from a jet kit. You'll be fine to test the main jets, and raise the needles by shimming them out a little, or get a jet kit with adjustable needles. Which ever you want. The only thing different about the needles that come in a jet kit is the taper of the needle, which I have yet to hear a positive answer on what effect that makes. I think it has some effect down low right where the idle circuits and the needles are overlapping, but I'm really not sure. I've had no problems with using stock needles that are raised with washers. DIY shimming the carb needles. (part of the jetting without a jet kit I liked down there) Jetting with a jet kit. Jetting without a jet kit |
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February 18th, 2012, 04:49 PM | #16 |
Accesories Guru
Name: Dave
Location: Centreville, VA
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True that, I would feel like a hypocrite if I don't do it myself. I will get a kit probably, but I will need to get this slip ons first.
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February 18th, 2012, 04:52 PM | #17 |
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Especially because the work you've done is harder than jetting. Jetting just takes time and changing one thing at a time to test one variable at a time.
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February 18th, 2012, 06:22 PM | #18 |
ninjette.org sage
Name: Byron
Location: Reno, NV
Join Date: Dec 2011 Motorcycle(s): Ninja ex250 1990 Posts: 761
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its alot better when u got a fuel injected system :P
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1990 250F. ex300 motor swap, 15/42 gearing, flush side markers, newgen intergrated front fairing, rear integrated turn signals, DB Touring Bubble, zx600 rear shock, Custom DanMoto Exhaust |
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February 18th, 2012, 06:43 PM | #19 |
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yeah well I got $500 in my pocket that says my carbs work just fine plus I'm waiting to see what improvements are made on that kit/what the other kit with oem parts looks like.
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February 19th, 2012, 12:24 PM | #20 |
ninjette.org member
Name: Tanya
Location: Oahu, Hawaii
Join Date: Feb 2012 Motorcycle(s): 2012 Ninja 250 Posts: 46
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I got a black series two brothers for less then 400, and the sales guy was very helpful. Will post pictures once I get it and install it.
http://www.biohazardcycles.com/servl...-12/Categories |
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February 19th, 2012, 12:51 PM | #21 |
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We appreciate the insight on a good buy, but that's for a new bike. We have pre-2008 bikes
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February 20th, 2012, 08:13 AM | #22 |
vampire
Name: A
Location: IT
Join Date: Feb 2011 Motorcycle(s): 2 many 2 list Posts: A lot.
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My Ninja came with 2 Bros. slip-ons from the previous owner:
They are lighter than OEM mufflers, definately loud IMO. Performance wise, they offer quicker rev to high rpm, but power output doesn't seem to have much difference. I swithed back to OEM chrome mufflers for the quieter exhust note and less care required to keep them clean. |
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