Actualy they blow, but I digress. Straight to the point, scam product.
Take of the intake tube and put your hand over the hole. Now take your hand and put it over the intake on a hair dryer. Now you get the point.

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2004 Ranger XLT 4dr. 2wd
3.0 Auto
I put in a radio and a tool box
so it aint stock no more.