Contour Enthusiasts Group Archives Forums General Group Buy Extrude Hone - Interest check

Well, hard to say for sure but if the UIM is the flow restricting component of induction (ie, we know the heads, t.body, and prob MAF meter and K&N style filters are better flow..not sure about LIM butterflies)...and assuming an adequte exhaust (headers, Y, catback) then a 5% CFM increase in air would be expcted to gain, with proper fuel adjustment (say custom burned chip), gain 5% more power...about 10 HP...