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2010 Honda Fury Project II - Cobra Pipes

Friday, February 12, 2010
Climb on! Our 2010 Honda Fury project bike is running like a hot rod now. Next well work on cleaning up her bars and backside.
The Cobra Speedster Swept pipes not only complement the lines of the Fury much better than the stock arrangement, they provide more punch as well.
Cobra Speedster pipe kit
We were pumped with the results from the first round of upgrades on our Honda Fury project bike. Who wouldn’t like 4.86 lb-ft of torque and 10.24 more horsepower to uncork? With our AFT Customs High Performance Cam and Piston Kit and our Roger Goldammer G Force Smooth Air Filter in place, it was time for the next piece to the performance puzzle. Cobra Engineering Inc. stepped up with a set of its Speedster Swept Swept exhaust ($689.95) and a Fi2000R ($234.95) fuel management system to ensure that our pipes are running lean and clean.

Taking stock of inventory, the kit for the Cobra Speedsters comes with a front headpipe and heatshield, a combo rear headpipe and muffler with a heatshield, a mounting bracket, one headpipe flange, eight hose clamps of assorted sizes, two big hex bolts for the mounting bracket and a couple of smaller hex flange bolts and nuts. You’ll need to save the stock acorn nuts when you pull the OEM pipes off, but otherwise Cobra has provided everything you’ll need for a quick install.

One word to the wise. The first step in the instruction manual says to remove the stock system and the stock exhaust mount. I just glanced at the directions then removed the pipes first before realizing the stock mount needed to come off, too. So don’t be a dummy like me and add extra work. Removing the OEM pipe and exhaust mount separately did bring to light how heavy the stock mount is. I’d say the Cobra exhaust mount bracket is a couple pounds lighter, easy.
One of the first things to do when installing Cobra Speedsters is to remove the stock pipes from the cylinder.
One of the first thing's to do when installing Cobra's Speedsters is to remove the stock pipes from the cylinders.
Save the stock acorn nuts when you pull off the OEM pipes because youll need them to tighten down the new flanges.
With the old pipes and mounting bracket removed and the four acorn nuts from the stock headpipes safely stored, the first step is to replace the old bracket. The Cobra mounting bracket lines up perfectly with the stock mounting holes, so it’s just a matter of threading the M10 X 70mm bolt into the top and the M10 X 45mm bolt into the bottom. Threading the bottom bolt into the nut can be a little tricky because the space is tight and it’s difficult to grip it flush from behind. But you don’t have to torque the bolts down just yet, so at this point all you have to do is get it threaded.

Next we loosened up the right footpeg assembly to give us a little more room to slip the front headpipe on. With a little wiggling, the exhaust flange for the front headpipe slipped right in and we bolted it on the cylinder using two of the stock acorn nuts. After that, we took the largest clamp in the kit and slid it onto the lower muffler slip collar and then mated the rear headpipe/muffler with the front headpipe. With the pipes connected, we lined the rear headpipe with the rear exhaust port and bolted it down with the two remaining stock acorn nuts.

The muffler assembly is then bolted to the mounting bracket. So far, all the bolts we’ve applied are threaded on but haven’t been torqued down. After making sure our pipes are parallel and looking tight, we go about tightening the exhaust mounting bracket to the frame first, followed by the four acorn nuts on the exhaust flanges, and then finally tightening the muffler down to the exhaust bracket.

All that remains is to open the hose clamps so they can be fed into the slots on the inside of the heatshields so that they can be attached to the pipes. With this done, carefully slide the heatshields on. Do the larger front heatshield first, then the back before tightening down all the clamps. Go over everything you’ve bolted down once more, remember to tighten the right side footpeg back up, and you’re almost good to go. Cobra suggests that you wipe down the pipes to remove any fingerprints before firing your bike up that could cause discoloration to your shiny new pipes.

Power and grace. The Cobra Speedster Swept exhaust add a little of both to our 2010 Honda Fury project bike.
Stepping back to check out our work, what an improvement the Cobra Speedster pipes make. Where the old exhausts were straight and bulky, the sweep of the new Cobras complement the smooth lines of the 2010 Honda Fury much better. The bend of the pipes matches the roundness of the rear seat, fender and continues the front-to-back flow established by the Fury’s tank and the Goldammer air filter. Better yet, just wait till you hear these babies. The mellow purr of the OEM pipes is gone. In its place is a nasty growl, a hearty pulse you can feel when riding. The note is rich and full without being over-the-top loud. It definitely instilled our Fury project bike with more attitude.

To get the most out of our new Speedsters, we installed a Cobra Fi2000 to ensure a premium air/fuel mixture. Again, convenience is the name of the game. Cobra has made the process relatively pain-free. We were at
Cobra Fi2000
    Cobra Fi2000
an advantage from the start because of Goldammer’s air filter which left the stock injector connectors to the Fi2000 plugs already exposed. Otherwise, four bolts are all that hold the right side air cleaner cover in place.

The rest is a matter of running the wires of the Fi2000 from the left side where it’s mounted to the stock injector connectors that are accessed through the right side of the engine. Unplug the OEM connector on the front cylinder first and the Fi2000 injector connector plugs right in. Do the same for the rear, attach a ground cable to the ‘Negative’ battery post and then check your three settings by taking off the little door of the Fi2000. The green light setting makes adjustment for the cruising range, the middle yellow setting is an engine load-triggered fuel-adding adjustment, and the red setting is for fuel delivery at maximum rpm. The only thing you have to worry about is whether the three lights come on when you turn on the ignition. The Fi2000 comes pre-configured from the factory, so there’s no computer downloads or dyno testing required. All three should light up when you turn the ignition on. When you start the bike, only the green remains on. If you’ve got green, everything’s hooked up correctly. All that’s left is to mount the Fi2000 with the Velcro Cobra provides to the inside of the battery box cover and you’re good to go.

The Cobra Speedster pipes not only complement the lines of the Fury much better  but they provided 3.92 lb-ft more torque and 4.73 more hp.
New pipes for old, new pipes for old! The Cobra Speedsters added instant attitude to our Fury project.
Now the fun part. A twist of the wrist and the Fury project bike has no problem spinning its wheels. It’s got a much more powerful hit around two grand and the powerband is broader. The feel at the throttle is much livelier and fuel delivery is even throughout the powerband. It runs, sounds, and feels more like a hot rod. Throwing it on the dyno again, the Cobra Speedster pipes gave us 3.92 lb-ft of torque and 4.73 hp more than before. Overall, the engine hop-up, new intake, pipes and fuel management system were good for a 12.3% increase in torque and a 26.7% increase in horsepower.
We’ve got the Honda Fury project running the way we want it now, so next we plan on cleaning up the bars and back end a little. Grip ACE is sending us a digital switch system for the controls on the bars, while RAW Design has a Stealth LED system for the backside so we can ditch the stock taillights. Just got word that Low and Mean may have some steel fenders and we talked to RC Components’ Chris Cross about getting some wheels for it while we were at the recent V-Twin Expo. Cutting Edge Illusions, who did the trick paint job on our CBR600RR project bike, is on board for some new paint as well. So stay tuned, there’s plenty more cool stuff coming for our 2010 Honda Fury Project Bike.

Performance Gains Measured on a Dynojet Dynamometer Model 200i:

Stock Torque Output - Torque 71.32 lb-ft @3100 rpm  HP 56.23 hp @ 4300 rpm
With new Pistons, Cams, Intake – Torque 76.18 lb-ft @3600 rpm  HP 66.47 @ 5100 rpm
With new Pistons, Cams, Intake, Cobra Speedster Pipes & Fi2000 – Torque 80.13 lb-ft @  3600 rpm 
HP 71.25 hp @ 5150 rpm
Gain from pipes alone – 3.92 lb-ft torque 4.73 hp
Total Gains – 8.78 lb-ft of Torque and 15.02 hp
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Overall  our engine mods  new pipes and fuel management system were good for a 10.9  increase in torque and a 21  increase in horsepower.
The new Cobra Speedster Swept pipes and Fi2000 were good for 3.92 lb-ft torque and 4.73 hp.

Overall, our engine mods, new pipes and fuel management system gave us a 12.3% increase in torque and a 26.7% increase in hp.

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tremaineiz   January 15, 2014 08:24 AM
don't be haters. The Fury was designed by Jesse James for Honda. Talk Shiaat to him. Why worry over metric. 75% of Harleys' are made up of Asian components. SOME PEEPS ARE JUST PLAIN STUPID. I have owned 22 Harleys & got on a Fury because it just makes sense.
Ryan -Fury Rider  March 18, 2010 11:17 AM
Ohh and i forgot RedSpawnSilver has a slick Front turnsignal setup on the front of his bike which cleans it way up.

PS rip those crappy reflectors off the bike they are ugly
Ryan -Fury Rider  March 18, 2010 11:14 AM
Brian Harley needs to visit the furyforums.com He woulda learned with the tools hes got access to, the Dynojet Powercommander 5 is the better move, and since he likes sound probably Samson Hellraisers, or he coulda seen some of the other pipes the users have put on and what all was needed to have a better selection. Not to mention more comfey seats, Forward controls, lighting options, Wide tire kit, Sumo-X's lowering kit they are going to soon release, Rim options, Irate Grills and the list goes on for almost ever
junior -how do i get psssed the speed govener on the bike?  February 27, 2010 07:38 PM
i have a 2010 fury
i want to know what i have to purchase to get this bike over 100mph

Mondo Endo -Fury mods  February 18, 2010 10:38 AM
Good gains with not alot of effort. What about the 100mph speed limiter? I think every bike is a slow seller these days considering the economy but I bet Honda is much more concerned with DN01 sales than the Fury.
Ledwrist -expensive ponies  February 17, 2010 11:33 AM
You folks have spent a ton of money on this engine and it still doesn't come close to the kinds of numbers the Honda VTX 1800's engine does stock. IMHO Honda made a huge mistake by not offering this bike with both engines like they do the VTX. Sales are down all over but I bet their Fury sales might double with this one small change. Hell maybe even I would try one out. Nice work so far guys
baddad -fury  February 17, 2010 02:58 AM
I like Fury, but this Cobra pipes are very, very ugly
RedspawnSilver -No sales disaster...  February 16, 2010 10:44 AM
This project is intruging, but I'll let others go into the number crunching as they would know how to read a dyno run stat sheet better than I. But, this post would be pointed towards those that say the Fury is a sales disaster for Honda and those throwing the "furby" name around. There are currently 1700 members and growing on the Furyforums.com site... Don't think it's a sales disaster at all, do you?! Just had 3 or 4 new members from OH join within the last 2 or 3 weeks, even when there is snow on the ground there, so all is looking good for the fury... Oh, it's not like it has been around for 100 years now (so yes, you'd typically see less of them on the road considering the time frame), so only 9-10 months on the road since it was first sold and we've already started small, but strong Fury rider clubs all around the country, now that is saying a lot. Also, Honda is so satisfied with the sales of the new Fury, that they are basing a new Special Editions 1300 line on the basic foundation of the Fury (found on the Honda website). Anyways, my .02 cents since it seems that everybody here "knows" better...
Ryan -Fury rider  February 15, 2010 09:18 PM
Dude i wouldnt call this a sales disaster, the shop i bought mine from sold 3 within 4 days of me going, putting a deposit and picking up 4 days later. I think part of it is the fact the bike is brand new so there are probably only a few thousand out on the streets in the world since some are stuck in snow and some have probably been totaled already. Also a 10 HP gain on this bike is almost 20% so take that on a 200 hp car and its like adding 40 hp. sofar i havent seen any other than mine on the road around this area of florida and i know there are 4 other furys from forums, and alot more that have been sold that are on the road
Brian -Fury  February 14, 2010 05:18 PM
There is a guy near me that just picked up a fury with those pipes.. fackin' SEX... I am a sport bike rider myself but I'd probably get a Fury as a nice cruiser.
Tim B -milwaukee mike  February 14, 2010 03:45 AM
Hey Mike! It's funny that you mention pigs. That's usually what's riding on the back of Harleys! Haha!
On the Fence -Furby  February 13, 2010 08:37 PM
Again great write up. However, what I'm really shocked at is you've done alllllllllllll these mods which is pretty extensive and about all you can do except port the thing and it only you only gain: 8.78 lb-ft of Torque and 15.02 hp compared to the stock: Torque 71.32 lb-ft @3100 rpm HP 56.23 hp @ 4300 rpm and aftermarket work of: Torque 80.13 lb-ft @ 3600 rpm HP 71.25 hp @ 5150 rpm. Had a done that type of work to a 4 cylinder I would have gained more then double the results. Is this a sign of poor aftermarket parts or just a poor engine design or both?
Bo -Weight  February 13, 2010 10:47 AM
Great project. I'd love to see how this all plays out on the scales. The pipes drop weight, but sounds like fenders and other bits may add weight. When you do a final wrap-up, give us a before and after. So many times people brag about how much weight their aftermarket pipes save, but ignore all the other stuff they've bolted on. Don't be that guy.
Bob -Milwaukee Mike  February 13, 2010 05:46 AM
Your such an idiot .
Mark H. -Thanks!  February 13, 2010 05:23 AM
Thanks for taking the time to show the gains from each individual mod. Too many other places would make all the mods, and then dyno for results. This doesn't allow one to determine what parts yielded which gains. I like the way you did this. Thanks!
milwaukee mike -furby  February 13, 2010 12:46 AM
You can spend tons of cash on any metric bike, but it's like putting lipstick on pig, and it's still a pig.
Why waste the time and money?
Johnny Mac -Thanks for doing this project  February 12, 2010 10:29 PM
I have followed this project with great interest. It's not because I have a Fury but a VTX1300C and except for the Fuel Injection all of these mods should work for me also. I would really like to see some performance figures such as 0-60, 1/4 mile and 60-80 top gear times. Even before this project I planned to get those Cobra pipes.
Hank -@iliketoys  February 12, 2010 01:47 PM
So, you've seen one dood on a Fury. And that covers distances from the Inland Empire (Riverside County?) to LA/Orange County.
I ride all over LA County several times a week.

And I've seen zero. So between the two of us, covering all this territory, we've seen a total of 1 Honda Fury.

Yup, it's a sales disaster.

mo-usa.com, would you like to comment? In the latest issue of Motorcyclist Magazine Catterson eluded as much.
iliketoys -@hank  February 12, 2010 12:09 PM
There is a guy near me in SoCal that rides from the IE out to LA/OC on a Fury. I'll see him on my commutes down the 91 on occasion. Since this is one of the slowest sales years in recent history, my guess is you shouldn't be seeing too many of anything that was just introduced this year ('09/'10). It's probably way too soon to tell. Had it been out when I was looking for a bike I may have bought it, but my tastes have changed since.
GB -little too late  February 12, 2010 12:01 PM
i think Honda was late on this. the crusier market is saturated with customs and with the economy sucking......
Hank -Sales disaster?  February 12, 2010 11:00 AM
Any truth to the rumour that the Fury has been a sales disaster for Honda? I live in Los Angeles and have yet to see one on the road.
Lefty -2010 Honda Fury project  February 12, 2010 04:58 AM
Nice work on the motor mods. I was thinking that the stock rims would look good if they were polished or chromed. Save a good chunk of money as well.