The HP increase claims are based on a stock car and replacing the Original mass air meter with this unit. These mass air meters are larger in diameter and have a more specific calibration that an OE Air meter. Since your car has already been modified and tuned, you may not see the full 8-12 horsepower gains that a completely stock car would.
Answered by Scott G. from hewitt | Comment 0 0
Ford Mustang - 1999 (99) - 2000 (00) - 2001 (01)