1998-2003 Ford F-150 truck with 4.6L or 5.4L engine. - Mild sound
1987-1996 Ford F-150 truck with a 4.9L, 5.0L or 5.8L engine. - Mild sound
1999-2004 Ford F-250, F-350 trucks Super Duty chassis with a V8 or V10 engine. - Moderate to mild sound
1994-1997 Ford F-250/F-350 trucks with a 5.8L or 7.5L engine using a 3-inch catalytic converter. - Mild sound
Fits 2004-2008 Ford F-150 & Lincoln Mark LT trucks with 4.6L or 5.4L engine. - Mild sound
1987-1996 Ford Bronco with 5.0L or 5.8L engine using a slip fit catalytic converter. - Mild sound