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Air Filter Intake Hole Sizes.

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ohmygahitscoby

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Alright, so my Mugen is a .12 engine, but has a .21 intake hole for the air filter. I want to buy an air filter from Ralph (Rolex), but he said he had his on a K4.6, which is a .28. Will the air filter fit my engine, or is the elbow too big and I need to buy a smaller one or mod it?
 
Why don't you just buy the Motor Saver designed for that particular engine? They don't restrict flow at all and look pretty cool if you ask me.
 
I guess, but then the one that I have got dirty and I just don't want to buy new air filters, I just want to get the foam.
 
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