S steve wilson New Member Aug 29, 2005 16 0 2 Jan 24, 2006 #21 Jan 24, 2006 #21 That Magnaflow test is not an apples to apples comparison as to H vs. X pipes. For the X pipe test they also upsized the tubing from 2.5 to 3.5, and the mufflers from "unknown" 2.5's , to their 3" mufflers. Just an observation.
That Magnaflow test is not an apples to apples comparison as to H vs. X pipes. For the X pipe test they also upsized the tubing from 2.5 to 3.5, and the mufflers from "unknown" 2.5's , to their 3" mufflers. Just an observation.
