This listing covers MY’s 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, & 1993 Mercury Marquis’ (’80-82), Grand Marquis’ & Colony Park’s with the respective stock MY V8’s: 302ci, 351ci, & 4.6L.
Photo depicts the dual cat-back exhaust system for 1990-91 Marquis’ with the stock 302ci.
- Dual exhaust starts behind the LS/RS catalytic converters (which must be in place) and consists of a NORS H pipe, LS/RS mufflers, and LS/RS tailpipes.