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SKU: ATD-870362
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MFG Part Number: 4166-2EX
4165-2IN and 4166-2E when used as a set provide increased mid-top torque and horsepower. Produces more power than the OE cams from 6000 rpm and up with a slight loss at lower rpm. Produces more power than the stage 1 set from 8000 rpm and up.
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