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3X3 4X3 4X4.....Does it make a difference??

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I've heard of people on here going bigger than the 3x3 mod but does it really make a difference to open it up one more inch on each side? And if you do open it up more does this effect the jetting that's set with the 3x3 mod?

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Here is the million dolla question... suppose one cuts a big ass hole and is able to tune it accordingly... will it make any more power than the 3x3?

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Thats good to know, thanks eddie. I have mine just shy under 3x3 (mainly because I couldn't get it perfect) with your specific jetting specs.

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Here is the million dolla question... suppose one cuts a big ass hole and is able to tune it accordingly... will it make any more power than the 3x3?

not with stock carb and motor.

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not with stock carb and motor.

That should be in the FAQ with emphisis on exactly 3x3! :thumbsup:

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it wouldnt be called 3x3 then.it would be called "cut your air box hole to whatever".

NO No its called the polka dot mod and you take a 1in hole saw and cut 17 1/4 holes throughout your airbox all of this= MAX Power :thumbsup:

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sorry, i was thinking about shape-hole... :thumbsup:

Shape really has very little if any actual affect at these velocities.

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I would say it(the size) makes a noticeable difference. I bought a used 03 and the guy cut the whole top off the box and didn't rejet. I re jetted and added a full yosh system, I noticed a huge improvement. I bought my wife an 05 and cut exactly a 3x3, re jetted and put on a fmf exhaust. Her bike was plain out faster than mine mod for mod. I reduced my 5x5? hole to 3x3 with a double layer of duct tape and it evened things out nicely, (I dint have to look at her brake light anymore!) My bike also seems to pull harder - a very noticeable improvement. I'm going to use some aluminum to make my 3x3 more permanent. :thumbsup:

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search, my friend, search.... there are many pics and links posted within this section..

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search, my friend, search.... there are many pics and links posted within this section..

what I did, covered the top of the airbox with masking tape and sketched out the hole, I did mine slightly larger then 2.75x3.25 to save the cdi mounting tabs (it's been 5 years since) used a 1/4" hole saw to cut the corners out then cut from hole to hole in tangent to create the finished hole. then filed the edges to make it alittle nicer.. I used a drywall saw but there are other medthods to do this

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on the offroad model can't you just pull the snorkle out? it leave s a good sized hole there.

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on the offroad model can't you just pull the snorkle out? it leave s a good sized hole there.

Sorry I have a S... unsure about the configuration of the E and K

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Sorry I have a S... unsure about the configuration of the E and K

Sorry if this is a stupid question but what is the difference between the s and the k model and how do I tell what I have? :thumbsup:

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a K model is a kick start dirt bike

an E model is the electric start dirt bike

an S model is the duel sport street legal

an SM is the street legal supermotard

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