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yeah no thanks.
Yep, pretty much, Unless you've added a cam, headers, or forced induction, and had the computer tuned to account for the change, it's not going to make one bit of difference. I've got a Cone filter on the factory intake tube on my 4.0 swap but it was added because I didn't have a place for a factory airbox as I have a battery there, I didn't expect a gain and I didn't get anything other than a bit of noise.
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