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Discussion Starter #1
I just got a kandn with an alba adaptor and outer were, and i was wondering what size jet i should put in. also would grinding out the welds add to the power i would notice?
 

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Discussion Starter #3
Haha alright i wont grind them out on the frame. what size jet would i notice a difference? what size is the stock jet?
 

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Do a thread search for this one. I think there's a couple ppl who Modded the airbox and added a aftermarket filter only. Dont think you would see too much gain with filter ONLY. You would have to loosen up the restriction into the airbox either by removing the lid, removing snorkel, or modding the airbox with holes or "hole inserts" though. Do a search though, you'll find a lot of info on most of this.
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Discussion Starter #5
So with my kandn outer were and if i girinded out the welds in my headpipe, what size jet would u recomend. What size jet would i be able to tell a difference with without being too unreasonable?
 

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With no other mods? umm.. maybe a 135? I doubt you'll notice much of a difference with just a filter and that grinding you want to do.

The stock jet is a 130. The Z400 seems to be mainly held back by poor breathing due to the sound baffle at the end of the snorkel & the pea shooter on the spark arrestor. After that you'll have to cut a hole in the muffler (the wall directly behind the spark arrestor) and cut up your airbox lid.
 
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