Gas mileage greatly diminished after akropovic carbon

[tbi12904]

So I installed the akra carbon and didn't notice any big difference in how the bike performs, aside from the gas mileage and the faint smell of gas when running. I haven't heard of these particular issues from anyone else. I don't have the ejk or a flash or tune of any kind. I've always planned to do the 2 wheel dynoworks flash, just haven't had the money yet. I rode to work and home yesterday, which is about a 115 mile round trip, and I used an entire tank of gas. Any input is welcome. Thank you.

[jeffkisthename]

I used 128 miles today. I have the Akra Carbon. I went a couple of miles into the F trip. Did you even hit the F Trip? Did my gas mileage go down from stock? Yes, because I am harder on the bike now and rev for no reason to hear that sexy tone. I am guilty.

[bigdaddybane]

I'm running with Yoshimura R77. After the swap my gas mileage went down by at least 30%. I am still in break-in period with only 350 miles but I'm pretty sure the fuel economy will improve in time. Before I installed EJK, the smell of gasoline was thicker than lawyers in hell ... now it's almost totally gone.

[hordboy]

So I installed the akra carbon and didn't notice any big difference in how the bike performs, aside from the gas mileage and the faint smell of gas when running. I haven't heard of these particular issues from anyone else. I don't have the ejk or a flash or tune of any kind. I've always planned to do the 2 wheel dynoworks flash, just haven't had the money yet. I rode to work and home yesterday, which is about a 115 mile round trip, and I used an entire tank of gas. Any input is welcome. Thank you.

Do you have the 02 sensor installed and connected?  It needs to be.
 

[ravibpatel]

Does anyone have any input regarding gas mileage after exhaust and a tune? I'm on the fence about getting an exhaust but would not even consider it if Ill get 10 mpg less on our zippo sized fuel tank.

[Simbadc650]

I average 50 miles per gallon, but i ride like a demon for speed on the freeway, so i want to stay eco, but the eco dont wanna stay with me.
 
S1R1 Two Brothers exhaust with EJK kit.

[12ival]

when i ran mine without a tune, it was a slight drop in gas mileage. after the flash by 2wdw i get even slightly less but it runs alot smoother. and like @jeffkisthename said, there's alot more revving...lol

[603nytroxtx]

You need to get EJK or flash. When I put the Yoshi on before I got the flash I noticed pretty significant sluggish performance but didn't keep it that way for long enough to get MPG comparison. I got the 2WDW flash shortly after that and noticed an extreme change in the way the bike ran. I am also averaging 2 MPG's more this year compared to bone stock last year. I am also running my bike way harder with the new exhaust. With that mileage you're getting the Flash will pay for itself in one year!!!! hahahahaha

[Beemer]

During my break-in period I got great gas mileage, right around the claimed 58, which I thought was nice. After that I installed my Akra CF pipe, EJK and K&N air filter and it was different but then again I rode faster also. All in all I'm still getting between 45 and 54 mpg on average and that's nothing (for me) to complain about. I look at it this way, I have a bike that can not only deliver good gas mileage, I have a bike that can also deliver 0-60 in 3.4 seconds and a 1/4 mi. in 12, adrenaline producing, seconds. Oh, and it can wheelie in the first three gears! I say ban good gas mileage! 

[pineappleunderthesea]

I have the Akra carbon with flash, and the mileage is more or less where it was if I ride at normal speeds on my typical commute. But the issue is that I am more aggressive on the throttle, and the mileage suffers because of that. I also have been riding a little faster than usual, so that doesn't help.
 
Tunes can go either way. When I got an APR tune on my Audi years ago, the mileage actually seemed to improve a tiny bit when I drove the car "normally". But since it was a turbo car, I kept getting into the boost a lot more often in order to enjoy the extra HP, and that affected my mileage. I think the same thing is happening with the bike, I'm being more aggressive without really noticing it.

[norcal616]

My avg MPG goes up and down depending on mood and what not...after owning the bike for over a year now I have become way more comfortable using the bikes power band which results in slightly less MPG unless I'm on a cruise with the Harleys the MPG goes way up .. For the avg 52 mpg this lil bike has and the ability to run 7.80sec passes in the 1/8 mile is way way more than what most ppl own or drive on a daily basis... If you are constantly running the bike past 80+mph on a regular basis for long highway commutes you can go to a 17front sprocket and drop the rpms by over 1k compared to the stock... that will bump your MPG up for example...

[gregjet]

I run my Akra snail with the dB killer in and noticed no statistically significant difference in fuel consumption. If I ever get around to making the chain a 520 system I will go longer gearing and suspect that will improve it a bit.