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Big Gun Rev Box

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Have it by April 23rd when you order by 3:00pm PST.
FITS: 2006 Honda TRX450R (ELECTRIC START) change
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Big Gun Rev Box

Product Description

  • Big Gun Rev Box is an easy way to add power and increase the ability to push the redline on your ATV engine higher.
  • Big Gun Rev Box adds up to 3 horsepower once snapped in for instant power.
  • Big Gun Rev Box allows RPM levels to go from 11,200 all the way up to 12,000 on your ATV engine for more top end.
  • Big Gun includes everything you need for installation with easy to follow instructions.
  • Big Gun includes a 6 month warranty on the Rev Box.
  • Customer Reviews
  • Ask an Expert
  • Also Offered For
3.8 out of 5 stars
5 star   7
4 star   1
3 star   1
2 star 0
1 star   3
1-10 of 12
Ease of Installation
Location: Austintown, OH
Works great

I've had this for about two years now and I've had no problems with it. It does make a difference in power and top speed.

Verified Purchaser
Location: San Diego, Ca.
Not so happy....

the big gun rev box I got and installed in my quad did not work for some reason it made my quad run like grud, so I called motosport to see what they can do for me and some guy named Isaac said "it's a electronic device so we can't take it back call the manufacture see what they say".... sweet thanks

Ease of Installation
Location: Portland, MI
Waste of money

i have a 2009 TRX 450er , i plugged this box in and it literally did nothing for me. i felt absolutely no increase in power and my top speed was clocked actually a little bit slower, from 80 to 76. maybe i just got a bad box, but i am not pleased.

Location: Boron ca
Bad product

I put this on my bike and it made it run terrible worst 200 dollars I've ever spent stock box works better

Location: Manhattan, KS
2007 trx450r

Product works great! Big differance in the rpms. pulls hard in 4th and 5th gear can really tell the differance. Awesome!!!!

Top 500 Contributor Top 250 Contributor
Location: butler, PA
Bad luck

pulged it in & it worked great for about a month. then my fan stoped wotking & my indicator lights didnt work. i put the old one back on & everything worked again... MOTOSPORT is a great company to deal with. they got it warrantied by big gun & being the only differance was the higher rev limiter i took the credit towards some other parts.. it cant hurt to try it. mabey you will have better luck than me....

Ease of Installation
Location: seattle washington
Good for the price

helped wake up my 660. it should run like this from the factory

Ease of Installation
Location: mechanicsville, va
Best thing to get

i got a 05 400ex and when i bought this i plug it right up and like other people say the first ride you dont really feel a difference but once you ride it bout 2 or 3 times you feel the difference it did pick up on the top end but it really picked up mainly in 2nd and 3rd.... my 2nd guy wheelies i use to have to pull back some to pull it un but now it comes right up with no problem and with this box i took out to a friends far with a bunch of open land opened it up to 5th and it was still pretty easy to stand it up in 5th. great buy if u plan on racing buy it, it will help out a lot...........

Ease of Installation
Location: Bakersfield, CA
Works great

An ignition box was the next step in the evolution of my raptor, and it worked great. Plug n play, and the quad even starts easier.

Ease of Installation
Location: Kittanning, PA
Great Buy

I installed this in my 06 raptor 350, within 5 mins. Super easy to install, and what a huge difference you see. Huge power increase! Takes a bit for it adjust to your system, but def worth the extra cash rather than buying a cheap model. Can always trust Big Gun.

1-10 of 12
Total Questions (2)
Questions with answers:
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1-2 of 2
450quads Over 7 months ago Location: tn
What do people mean when they say ''your bike has to learn the big gun cdi box?"?
i purchased the big gun rev box and installed on a 09 yfz 450 now my quad wont run but 10 secs at a time with a little throttle and wont run at all w/o throttle, so i put the old box back on and runs perfect. does the big gun box have to adapt to your bike to get it to stay running or just to see the power difference? should i keep trying it over and over or refund the big gun?
MotoSport Staff
Over 7 months ago Location: Portland, OR, USA
This CDI should be a plug and play item. There is no "learning" curve for a CDI box. If you are having issues with the bike running with it installed you may have an issue going on. If you purchased the rev box from us, please give us a call and we can assist you in figuring out what may be happening with this installed, and will do our best to get you taken care of.
Bubba Over 8 months ago
Is it a limiter where if you rev to a certain point it bounces off the limiter or goes till it blows?
MotoSport Staff
Over 8 months ago Location: Portland, OR, USA
Big gun claims that on their CRF/XR 50/70/80/100 CDI boxes that the rev limiter is raised 1200-1500 depending on model. Your XR100R would still have a rev limiter with this installed.
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