I dont have much money so i am looking for cheap/DIY/free mods on my MC21. I have mfactorywest cans and mmax derestrictor, but still havent put them on.

I want to try the airbox mod, but dont know where to place the holes or how many.

With the cans, the derestrictor, and the airbox mod, how much gain will i get? reliability? and will i need to rejet?

Thanks
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93' MC21