youll be fine. i have seen quite a few buells with straight pipes and those hypercharger kinda intakes with no other mods and they have lived a long life

 

Thanks bro! Yeah I was just looking at the diagram and when the exhaust valve is open it has an even shorter path than the hole I drilled, I just don't know much about these bikes and wanted a second opinion....ur right I think I'll be good to go


Sent from Motorcycle.com App

 

You're really in the wrong place... www.badweatherbikers.com is the place for this sort of thing. I recall a lot of threads and info regarding can hacking... I think the guy who I pointed you to in the other thread even has directions on how he does his - search Special OPS.

 

I seen those guys, I'll look into them a little deeper when I'm ready to start chopping, just figured I'd ask here first to see if what I'm planning to do is a bad move

Turns out the exhaust valve was really just for emissions any way, from what I understand the R version doesn't even have the valve

Thanks anyway guys


Sent from Motorcycle.com App

 

Yeah, if you disconnect it though you'll get a dummy light on your dash... the ECM flash can get rid of that IIRC.

 

Ok time for a harley/buell service tech to chime in. This valve is know in the yamaha World as EXUP it gives you a bit more torque in the bottom end and better acceleration then opens up at higher rpm to let her breathe better. Leave it alone. Unless you want all your torque to flush down the toilet for sound and not much either. If you want sound get a better bolt on can. They are designed to work better than stock and some use the valve and some not. Either way leave it in

Sent from Motorcycle.com Free App

 

I don't intend on totally removeing anything....in the process of doing this the servo that controls the valve stays plugged in(electrically) its just the cable that is disconnected and pulled to a position where the valve is always open

I totally get ya on losing the low end torque, I also figured the same thing but I've heard tale of a few that have done this for the same reason of lacking funds for the spendy slipons, most have said the only change in the bike was smoother low speed traveling(25mph and below) making the bike less jumpy through town and such but no noticeable loss in torque..

yes if the servo is unplugged(electrically)it will throw an error code and a light

My main concern was combining the two changes I mention, but after studying the diagram I see that by opening the exhaust valve it renders my first mod useless and in fact would allow some of the exhaust to circulate through where it's originally suppose to go


Sent from Motorcycle.com App

 

Well like i said dont disconnect it either save uo your cash and dint modify it. Its not worth it. Your engine is designed for it. In the long run you'll be sorry you did. I have seen so many bikes where someone did this and later wish thry hadn't. You need that low end back pressure. There is a lot more technical shit riding on that than you think
Trust me. You'll wish you had left it alone when you're replaceing exhaust valves and your pistons burn up from running to lean. This happens because in the lower end your computer is tuned to give less fuel to compensate. When you open it up you're leaning it out then when you're riding and you go WOT it goes from super hot fron the lean mix to cool from a normal mix. This rapid change back and forth will burn out your pistons and exhaust valves. And like i said there is almost no sound gain at that rpm level. Plus once you give it wot that valve is open so you'll see the extra sound you're hearing is through the intake. So head my warning. In the end it's your bike do what you want

Sent from Motorcycle.com Free App

 

Never heard all that shit, but I never looked either... I do know that Buells run pretty lean to begin with...

 

Thats why i am still paying off a debt of $30,000 for a school from harley. You're welcome

Sent from Motorcycle.com Free App

 

Thanks for chiming in amigo. I happen to love the sound of mine but I think it's got the hawks exhaust

 

yup all the aftermarket exhausts. as long as it is a slip on you will be ok because these are designed to work with the exup removed (most of them have a special baffled system) this helps with keeping the lower back pressure. you could also use a power commander and retune the whole range to keep the fuel curve straight then you can use what you want with no worries. just keep in mind the buell system is one of the most sophisticated EFI systems in the world. (later model XB's with O2 sensors) and they are awesome when properly tuned. I had a stock buell with the Screamin eagle super tuner (harley's ecu tuner) and started with about 75-80 RWHP and just fuel curve tuning we cranked out an extra 20 RWHP with the stock exhaust, then swapped out for a V&H Pro Pipe, tuned it again and got an extra 8 on top the other 20 and that pro pipe is one loud mean son of a bitch. so i fou need any help let me know. I'll step down from my soap box now.

 

Mine came with an ECMspy, I assume that if I replace the exhaust I have now, I"ll need to do a new program on there? Is the V&H Pro pipe your recommendation for sound and power? Just curious. THanks for all your wisdom amigo!

 

the pro pipe is what you would use for the most power you can get (its designed for drag racing) and it is OMG Loud you will need ear plugs while riding

oh i just found out its not called the pro pipe that is another (looking on youtube the one i used was the competition series it was modified from a sportster to fit the buell i am looking for a really nice one for you.

ok here is a good one from D&D its a dual exit pipe. very nice and Made in Texas

here is a video of it

and more info on it
http://www.danddexhaust.com/catalog/buell

have fun boys

 

that is pretty beefy! Mine has the Hawk exhaust mod and the sound is pretty beefy as well. I'm on the fence as to whether or not moving to the DD will be a noticeable difference from the Hawks, etc. Damn these have such a beautiful note! When I was on the base the other day I was talking to another soldier that was on an R6, of course he was afraid that the Buell would fall apart because of all the rattling and said that the sound was too loud, etc. I was so happy to hear all these and many other "has no idea what he's talking about" comments.

 

Keep in mind what with all of the aftermarket exhaust options, you lose your jack point. Not a big deal for most, but after tearing mine down on my shitty HF motorcycle/atv jack, I fell in love with that option.

 

very good point amigo

 

Get a race stand

Sent from Motorcycle.com Free App

 

I've also heard buells run lean but I can smell excess fuel from mine everytime I come to a stop, what gives?

Anyway, I tried out this mod today and yes there is a big difference in the sound all the way through the low and mid range, so much so that I might not ever buy an after market can....ahh who am I kidding I love the sound of the jardine! Maybe some day when I can afford it....till the I might reattach the cable...I might not....doing this stopped it from being so "jumpy" in town just as many said it would, I seen no loss in torque or power at all

But I'll have to do some more research, I've talked to quite a few buell owners that have been running this way for over 2 years with no ill effect


Sent from Motorcycle.com App

 

if you get a jardine and cut it down it sounds pretty good. Installation wasnt too bad but the problem with the xb exhaust is that its so dam low to the ground.... so if you go over a rather tall speed bump its going to get a little crushed. But when it does, thats a good reason to cut it shorter and straighten it out!

 

THAT SUCKED!

 

http://www.kdfab.com/

that is all you need

 

(Quote)

To upgrade your muffler to a Drummer, all you have to do is remove your stock muffler and ship it to us with your payment for $400 plus $25 shipping ($425 total) for the continental US and we will perform our magic on it and ship it right back. Shipping to Canada will be $40 and you will have to call for the cost of other international shipments. Turn around time is just shipping from you to us and then back to you plus a few days for us to make the conversion. Please remember to remove all clamps and cables before you ship your core to us.(end)


The part that says $425 is what kills me, plus the $$ for the ECMspy to reset the TPS....I'll just have to deal with it until I can gather enough info to modify my own exhaust and score an ECMspy($45 on eBay)


Sent from Motorcycle.com App

 

Fuck Drummer. Special Ops does similar work for much cheaper. I wouldn't pay $100+ more for a polished end cap...

 

i made a little slip on pipe for mitch's buell that used the jardine mid pipe and bracket... it was really easy to make and loud as fuck. It was really just an exhaust tip to route the exhaust but it sounded badass

 

I made my own 2-1 for my sporty. The muffler i used could be used for a buell too. 2.5" muffler for an audi. But you can use a 12" glasspack with a 2.5" exhaust elbow

Sent from Motorcycle.com Free App

 

I really kinda like the look of my stock pipe, it has a little stainless tip that dumps out the side, hopefully I can score the ECMspy sometime soon then this winter I can chop my stock can apart, gut it and re stuff it with a screen tube and some packing...or maybe just score the stock race can




Sent from Motorcycle.com App

 

Agreed! The Special ops is a way better deal and look/perform just as good....but after really thinkin about it, I'd be a fuckin fool to pay either one of these places to build a pipe that I could build myself, I just need to gather some materials in preparation for this winters exhaust build


Sent from Motorcycle.com App

 

Just for info, here is what was done by the previous owner on my bike...
http://www.buellxb.com/Buell-XB-For...ell-XB-Forum/Do-It-Yourself-Buell-Mods/Home-made-custom-Corvette-exhaust-for-XB


The idea was that it would be mostly open, but the walls covering ~60% of the can would act like spill ways slowing the exhaust down. It sounds good, but is a little too loud for me. I'd like to add some resonator tips to see if they'd calm it a bit. Initially, he had these corvette tips on, but removed them (his driveway was STEEP and it's the scg model). I keep looking for some clamp on tips that are short enough to give a try without committing.

No ecm tuning, and no check engine lights. Not sure if anything was done with the servo... haven't dug that far into it. In the end... I want it a bit quieter, want to keep chin fairing, and want to tune it... but that'll all come with more money eventually.