Two Brothers Juice Box??

Anyone here have any firsthand knowledge of or experience with the Two Brothers Juice box for the VFR12? At first glance it appears to be a much lower cost alternative to the PC V, albeit without all the available frills. Anybody here with any real-world knowledge of the JB ?

 

i went with Bazzaz Z-Fi $275 just installed recently feels great with it, been snowing lately need more miles to tell...hope to dyno tune over winter

 

Was that a sale price? I'm not seeing it anywhere that cheap. I hadn't really looked closely at the Z-Fi yet, but I'll probably have a better look before pulling the trigger.

I did find a comparison chart on Two Bros website which was interesting, reasonably candid, and somewhat informative, but still didn't answer all the pertinent questions.

http://www.twobros.com/Perf_Products/Juice_Box_Pro/0310_JuiceBox_VS_PowerCommander_chart.pdf

So since I didn't get any other responses here, I went to the source(s). I called both Two Bros and Dynojet (Power Commander). It was a bit like playing a game of twenty questions since neither party was eagerly forthcoming with info. I ultimately learned that Juice Box Pro is made by Dynojet for Two Bros and does in fact use Power Commander map files. Each has their own iteration of similar customizable PC software. Dynojet's software allows much more precise fine tuning while simplicity is the order of the day for the Juice Box Pro. And while Dynojet offers many add-ons for the Power Commander, with the Juice Box Pro, what you see is what you get.

My only desire for a fuel management system is to be able to get rid of the horrible low speed fueling issues. The bike is an absolute embarrassment to ride at parking lot speeds. The guy at Dynojet begrudgingly admitted that the Juice box would resolve those issues just as well as the PC V, given that it uses Dynojet's maps anyway. And should I decide to add a slip-on later, I can still download a new map for that. No, I can't add an autotune or a cooool LCD display, or a toggle switch to change maps on the fly. But I can hopefully make my bike stop bucking like a bronco while cruising through the grocery store parking lot, as well as smooth out the sub-4k power delivery. The price difference is substantial between the PC V and the JB Pro. I don't need all the frills, just a basic fuel management system. I can take it from there. Based on the info I got today (mostly from Dynojet), I'm leaning towards the Juice Box Pro. I'll take a closer look at the Z-Fi. I'll certainly report back with the good, the bad, and the ugly once winter gets out of town, but I think the PC V is off my list.

 

bazzaz Z-Fi Bazzaz.net - Why It's Better i like the Bazzaz products and company...met with Dante, who is their Rep, at the Int MC Show last winter in NYC and he was very informative and willing to speak to me and show me the products...we spent an hour that day and i think that sold me....Ammar Bazzaz developed these systems while tuning Matt Mladin's three world championship bikes....that says something....also available w/ traction control and quick shift !!! check it out...although i've only put a hundred miles or so on since install, i feel good about choosing Bazzaz

 

https://www.twocycleguys.com/p-125686-bazzaz-zfi-kt-vfr1200-10-11-f350.aspx here is where i got mine...i thought i had paid $275...they want $322 now

 

$322 seems to be about the cheapest price I could find as well, whereas I can get a Juice Box Pro for < $200 shipped. And since the VFR12 doesn't use multiple injectors per cyl, again, the only real advantage is the ability to add frills that I don't really need/want. But thanks for the info. I did spend a bit of time on Bazzaz website reading up on it, but there were no real revelations there. So it's still looking like it's gonna be the Juice Box Pro for me.

 

two brothers juicebox pro

Hey buddy, I have a 2010 vfr 1200 with the two brothers pro juice box and exhaust ( carbon fiber ). The pro juice box was the best money I've invested in the bike so far . I run it on the #1 setting although #2 gives it a little more zip it is also harder on gas milage. ( 32 mpg verse 38 on #1 )
two brothers only offer two setting over stock, zero being stock and one & two, you can also modify all three settings. I now have over 20,000 miles on bike with the juice box on for 10,000 of it.
Other modification to bike are Z-Bomb kit for first and second gear and a K&N air filter. With these mods. the vfr 1200 is now the overall best bike I've owned. I've been riding on the street for over 40 years on all kinds of bikes...

 

This doesn't surprise me, as I expected as much. Haven't pulled the trigger yet, but only because my wish list is currently pushing the envelope of my budget. But it's still high on my list. Thanks for the input.

 

Danderous Dave,
You're not by chance X-military are you ? I am retired military myself and knew a guy in my old unit with code name Dagerous Dave...team 964 ??

 

Yeah, there could only be one or two guys in the whole US military with that nickname....

 

Sorry Bro, not me.

 

my 2010 ran great with a PCV and 2 bros map - with leo vince slip-on, and k&n filter, and 1st2nd gear mod.

 

G'day again, not sure if you are aware but the Juice Box is made by Dynojet or affiliate. I haven't tried the TB JB but do have the PCV plus. Would love to hear if there is any difference, apart from price.

Cheers Rusty

 

Rusty, you should really read the rest of the thread. It's not very long at all, but you'll see we've already talked about this.
Cheers!

 

FINALLY pulled the trigger and bought a Juice Box Pro. I was hoping to get it installed over the weekend, but lawn and garden duties consumed all my time. So I did it at work today on my lunch hour. Ok, lunch hour plus twenty minutes. Installing the box was a snap. But as anybody who's done a PC V or Z-FI already knows...the O2 sensor connectors are a WHORE to get to. I actually managed to do it without removing the radiator and installed the "O2 Optimizers" supplied in the kit. I'll need to go back in there and secure all the connectors a little better to keep them out of harm's path (away from the hot motor). The JB Pro is TINY! Scarcely bigger than a Plen-T-Pak of Wrigley's gum. You have to tap into one of the TPS wires using the supplied "positap". I shot it full of Lithium grease to keep corrosion at bay. Here's a pic of the oh-so-tiny controller.



It comes pre-loaded with three maps..."Zero", "Stock bike", and "Two Bros slip on - stock air filter". Since I am currently still stock, I selected the stock map. I didn't ride far after work, but the difference was immediately apparent and it did exactly what I wanted it to. Sub-4k fueling is soooo much better! Power delivery feels noticably smoother at low revs. Typically when I come home and turn onto my street, I grab a few revs and then pull in the clutch and coast the rest of the way to my house because otherwise the bike bucks and bangs and clanks like an old Harley at reasonable platte speeds. Today is was a smooth, steady cruise down my street at 3k with no nasty noises from the driveline. I'm completely satisfied that I got my $200 worth and then some, and would not hesitate to recommend it to any of my 1200F brethren. If you want to know that you got the best of the best and don't care what it cost, look elsewhere. If you just want a fuel manager capable of eliminating the low speed fueling issues that plague this bike without spending a ton of money, and also capable of running custom(izable) maps, this will definitely do the job. And now...I'm ordering a GPR Ti slip-on. Once it arrives, a click of a screwdriver and I'll be re-mapped. Sweet. :biggrin:

 

Geez, 'tis small, it's about the size of my Autotune Module alone. Glad it's working for ya. If your bike is stock, what's with the extra + lead?? What gear r u experiencing the dreaded snatch & grab from the driveline when u ride up your street? Will be interested to hear more after the slipon etc. As u know what devices I have tried on mine, I am now swaying more to the ignition side as the cause, apart from the huge amount of lash in the output and final shaft.
You should try some of the EURO maps and see how they work in yours.

Cheers Rusty

 

DD, was this a self install? I,m waiting to purchase a JB based upon your experience with the new exhaust. Thanks for the updates.

 

"Stock" as far as the JB is concerned. The extra lead goes to a Powerlet port that I use for battery tender or heated vest, depending on the need at the time.

When coming down my street, it's typically in 3rd. In parking lots usually 2nd. But I've experienced it in higher gears as well.

Not a lot of maps to choose from online. NONE on Two Bros website and really only five on Powercommander.com. Two of those are Euro spec, one being for a totally stock bike, and one being for an Akro slip-on with no baffle, which would probably be a bad choice. I'll continue to run the "stock" map until I get my can installed.

It was a self install. Took me an hour and twenty minutes. But in all fairness, I'm a mechanic by trade and I've had all the bodywork off this bike before, so I had a couple advantages. The bodywork can be a real nightmare until you've done it a couple times. I'll update when there's something new to tell.

 

Dave, anything more you would like to share with us about the JB and new exhaust setup? Give up the goods dude. Hope the seat situation has been resolved too. Happy summer!

 

Your timing couldn't be much better my friend! :biggrin: *Yesterday*, I installed the db killer to the GPR can, rode to work (8 miles), REMOVED the db killer (TOO quiet), rode to the doctor's office on my lunch break, rode to the local dealer after work to get my new seat latch, and rode ~25 miles home from the dealer on a bunch of twisty roads. It's soooooo hard to be objective here, and to separate which mods did what, as I did so many in such a short period, but I'll try. The db killer was just too quiet for me, as I've grown quite fond of the bark of the slip-on. I *might* reinstall it for an upcoming road trip wherein the wife and I will be riding from SW Ohio to Middle Florida via "the scenic route" to visit her parents. It didn't take too much convincing for the dealer to let me take the new seat latch and install it myself in their parking lot and let them make the warranty claim. I'm cool with that. I tell you, the bike is such a pleasure to ride now I hardly know where to begin. PR3s, Ohlins springs, and Penske shock have made it oh-so-sportbike-like in the twisties, I just couldn't be any happier in the handling arena. But I know it's the engine performance you really want to hear about............

As luck would have it, I was nearly out of fuel when leaving the dealer after the latch swap. Mind you, I've been wringing this thing's neck since adding the JB and even more so the end can. I've loved wheelies my whole life, always doing them on my bicycle since I was a kid. The new found power delivery has NOT helped curb that attraction! In fact, I should probably start worrying about my steering head bearings from all the wheelie landings of late. So I was quite surprised to see 32 mpg when I tanked up, as opposed to the 29 mpg after just installing the juice box and running it in "stock" mode. I dialed up to the 'slip-on' mode once I installed the end can, so fuel economy has seemingly improved a tick, considering how hard I've been flogging it of late with the can installed.

Regarding the low speed fueling...
It's notably improved. There is still some driveline clacking under certain conditions. A Juice box and end can don't suddenly fix excess driveline lash, but I do believe it's improved from what it was. I've not done any fiddling with the factory installed map on the JB, although doing so might reap some benefit.

As I mentioned earlier, the wifey and I are about to embark on a 2k mile outing via all the backroads I can find, including riding US129 through Deal's Gap until it ends in Florida. So it will be interesting to see what fuel economy looks like after that. But dear lord I am so looking forward to exploiting the new found Uber handling through some of the twistiest roads this side of the Mississippi river. The bike is just on rails these days and I finally feel like I'm on a sportbike again. Almost brings tears to my eyes. Ironic since I was NOT a big fan when I first got the bike a year and a half ago. The JB and can are great for the paltry $500 I spent for them. But the real magic was the tires and suspension. I spent years on big,fast liter sportbikes, so BIG speed has lost some of its luster for me. And I probably shouldn't be doing so many wheelies on public roads (side note; Do DCTs wheelie?). But I never get tired of big lean angles in tight twisties, so I'm a very happy boy right now. I swear I thought I was gonna drag the side cases this morning.

I do hope all this rambling has shed *some* light. Hopefully I'll have more input by mid-July when we get back from our trip. But right now...I'm lovin' it! It's been much too long since I got to ride like this much of a wild man. :biggrin: