Big Gun TFI Power Box

Big Gun TFI Power Box
Big Gun TFI Power Box

$242.99 - $269.99
10% Off - Save up to $30.00

Select your bike to see if this fuel control unit fits
Description See Also: 3 Reviews 6 Questions Fitment Part Numbers
Item #GUN000S

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3 Reviews
5.0 out of 5 stars
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All Reviews
BlueBoy
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
2011 Raptor 700R

This is a great fuel system. Pretty easy instructions. I have this on my raptor and the pro design pro flow intake and it absolutely flys. I will soon be getting the big gun exhaust for it. This makes my quad a lot more snappier and run a lot better. Great product!!

BenDover Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Love it.

I have this and a Dr. D exhaust on my 14 Honda 250 and I love. So much more top end.

kfx450r
hudson, ny
Amazing

what a differance in power i have a exaust and a intake and this product made the final touch if ur looking for power i totaly recomed this product..

6 Questions
Answered:   6
Not Yet:   0
Honda
Location: Hadley
Q: How many settings does it have?
Over 7 months ago
MotoSportExpert
MotoSport Staff Expert
Over 7 months ago
A: The POWERBOX has six (6) programmable features (modes) available. Each mode has multiple settings. Instructions can be downloaded from the Big Gun website here:

http://www.biggunexhaust.com/index.php?route=product/category&path=821_822
JIMMY634
Location: Massachusetts, USA
Q: WHATS A GOOD SLIP ON PIPE TO GO WITH IT?
1 year 5 months ago
I HAVE A 2014 RANCHER 420 4X4. WHATS A GOOD SLIP ON PIPE TO GO WITH THIS AND WHAT ABOUT MY O2 SENSOR IN THE MUFFLER DOES THAT TAKES ITS PLACE?
MotoSportExpert
Expert MotoSport Staff
1 year 5 months ago
A: I would recommend one of the Big Gun systems depending on what you are looking for. Please contact one of our sales professionals to inquire about special orders and availability.
Dirt Bike / ATV: 1-888-676-8853
Tyler9512
Q: Does this product work on ATVs with a carburetor?
1 year 11 months ago
MotoSportExpert
Expert MotoSport Staff
1 year 10 months ago
A: No the Big Gun TFI Power Box is for EFI models.
CHICKEN
Location: New Jersey, USA
Q: More power?
2 years 2 months ago
i have 2014 rmz 250, big mouth intake, Yoshi full exhaust. bike has little to no top end. I kill off the bottom but lose it in straight aways. I seem to have enough power running 14/49 gearing and just looking to add a little more at the top. the area we ride is very flat with little to no real jumps. lot of whoops and long straights. will this product help. even just a little would be good, but a lot would be better.
MotoSportExpert
Top 1 Contributor
2 years 2 months ago
A: The Big Gun TFI Power Box is designed to optimize the fuel/air ratio of your machine. Depending on the stock machine, it may or may not benefit you with a completely stock motor, airbox and exhaust. Many times with the EFI systems used on the motorcycles and ATVs found today, when adding an exhaust, engine and/or airbox modifications, you will have to retune the stock EFI system to make sure you have the optimum air/fuel ratio. The tuner will not make any PEAK HP gains to your machine, but if your air/fuel ratio is not correct, you can see gains to the power curve of the machine by retuning the EFI correctly to optimize the modifications. Again, the EFI tuners do NOT produce more HP, they allow you to tune your machine to the correct Air/Fuel ratio.
matt
Q: Will this box increase my stock brute force 750 and if so by how much?
Over 3 years ago
MotoSportExpert
Top 1 Contributor
2 years 6 months ago
A: The Big Gun TFI Power Box is designed to optimize the fuel/air ratio of your machine. Depending on the stock machine, it may or may not benefit you with a completely stock motor, airbox and exhaust. Many times with the EFI systems used on the motorcycles and ATVs found today, when adding an exhaust, engine and/or airbox modifications, you will have to retune the stock EFI system to make sure you have the optimum air/fuel ratio. The tuner will not make any PEAK HP gains to your machine, but if your air/fuel ratio is not correct, you can see gains to the power curve of the machine by retuning the EFI correctly to optimize the modifications. Again, the EFI tuners do NOT produce more HP, they allow you to tune your machine to the correct Air/Fuel ratio.
Luke
Q: How do know what to set it on?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: When this unit is plugged in it will still retain the stock EFI map. It is a piggyback unit that will allow you to add or remove fuel in the low, mid or high RPM range to compensate for additional flow characteristics when adding aftermarket intake and exhaust systems. You can select which RPM range you need to modify and then select how much fuel you would like to add or remove. You must have a general idea of tuning in order to set the amounts to the correct value for proper operation of your engine. Typically when adding an exhaust system, bikes will run lean so more than likely you will be using this to increase the fuel output of the injector to correct the lean condition.
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Fitment
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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Big Gun TFI Power Box 40-R53A
Big Gun TFI Power Box 40-R51C
Big Gun TFI Power Box 40-R51E
Big Gun TFI Power Box 40-R51B
Big Gun TFI Power Box 40-R51A
Big Gun TFI Power Box 40-R51F
Big Gun TFI Power Box 40-R62
Big Gun TFI Power Box 40-R57D
Big Gun TFI Power Box 40-R57B
Big Gun TFI Power Box 40-R53
Big Gun TFI Power Box 40-R56A
Big Gun TFI Power Box 40-R56B
Big Gun TFI Power Box 40-R63
Big Gun TFI Power Box 40-R50C
Big Gun TFI Power Box 40-R54G
Big Gun TFI Power Box 40-R52B
Big Gun TFI Power Box 40-R54D
Big Gun TFI Power Box 40-R54F
Big Gun TFI Power Box 40-R54H
Big Gun TFI Power Box 40-R57A
Big Gun TFI Power Box 40-R51D
Big Gun TFI Power Box 40-R57C
Big Gun TFI Power Box 40-R52A
Big Gun TFI Power Box 40-R54K
Big Gun TFI Power Box 40-R54I
Big Gun TFI Power Box 40-R54E
Big Gun TFI Power Box 40-R54J
Big Gun TFI Power Box 40-R54B
Big Gun TFI Power Box 40-R54C
Big Gun TFI Power Box 40-R50A
Big Gun TFI Power Box 40-R53B
Big Gun TFI Power Box 40-R50
Big Gun TFI Power Box 40-R58
Big Gun TFI Power Box 40-R50D
Big Gun TFI Power Box 40-R57E
Big Gun TFI Power Box 40-R52C
Big Gun TFI Power Box 40-R50F
Big Gun TFI Power Box 40-R50E
Big Gun TFI Power Box 40-R51G
Big Gun TFI Power Box 40-R52D
Big Gun TFI Power Box 40-R53C
Big Gun TFI Power Box 40-R54Q
Big Gun TFI Power Box 40-R54N
Big Gun TFI Power Box 40-R54R
Big Gun TFI Power Box 40-R54M
Big Gun TFI Power Box 40-R54P
Big Gun TFI Power Box 40-R54L
Big Gun TFI Power Box 40-R54O
Big Gun TFI Power Box 40-R57H
Big Gun TFI Power Box 40-R57G
Big Gun TFI Power Box 40-R57F
Big Gun TFI Power Box 40-R57I