Chris,

I would suspect no change in MPG unless you put your foot into it more often. <img src="/forums/images/graemlins/wink.gif" alt="" />

In general, anything that you do to the intake side of a fuel injected engine, especially before the butterfly, will effect power, not fuel economy.

A more free flowing exhaust will improve both power and fuel economy due to less pumping losses.

Ron Schroeder
Long Island NY
99 4DR auto Sportage, 30x950R15 tires, 3/4" strut spacer, rear air springs, Manual Hubs, FRONT Torsen LSD
00 Safari AWD, 2" lift, 30x9.50 tires, 4x4 conversion in progress
73 Pinzgauer Swiss Army troop carrier