just wanna know what experiences people have had with these aftermarket CDI boxes and if they are really worth it?

BIG GUN REV BOX 1,750RPM over stock
ALBA REV BOX 1,000 RPM OVER STOCK

 

I borrowed a buddies Big Gun rev box for a trip to the dunes. I'm not sure what difference it made in performance because it was also my first ride with my 480 kit and ported and polished head.
It did , however, make it a little harder to start. If you loaded it up or stalled it while starting, then it was a real pain to start. Kind of like when it's flooded.
I have switched back to my stock rev box and it starts easily.

 

yup, same way mine was its really not worth it. i pay $100 for it and all it does now is collect dust.

 

get the dyna tech one .... it offers more rpms and it is adjustable......

 

There isn't anything wrong with my rev box. You should have asked your wife to start your quad.[img]i/expressions/face-icon-small-happy.gif[/img]

Really though, if you don't have a high rev cam and porting to match, the engine doesn't make power on the over rev. The stock cam and head sign off good power long before 7,000 rpms.

 

yep thats correct tractor on a stock engine you won't see any difference in power gains it will only make a real noticable difference when you start to upgrade the engine just whatever you do don't get a procom I haven't heard many good things about them...The vortex is a good cdi but you will be paying alot more then you would for a big gun...I wouldn't go getting it until you get mods done.

 

hey blaster how does the 450r respond to the hmf(good power gains) I was either going to go with the lrd,hmf ironman series,or the white bro's carbon pro but still deciding.

 

If it matters I use the FMFQ2. It is a real nice muffler and is a few pounds lighter than stock. If sound is an issue, consider the Q2. It is between 93 and 96db.

 

alright thanks I want it to have a nice tone but not obnoxious and have good power gains also

 

i like the hmf and my freind has one on his 06 and sound great. There is a nice diff. in the power to