2.25" vs. 2.5"

Discussion in '1996 - 2004 SN95 Mustang -General/Talk-' started by 2NDTIME, May 18, 2006.

  1. Stock 4.6 with off road H pipe. Would there be a difference in horsepower between 2.5 or 2.25?

    I am guessing less than 1 HP diff but just thought I should ask first.