18138 Walker SoundFX Universal Muffler v313431-v313432-v558305-v313433-v313434-v313490-v313485-v313484-v313479-v313444-v313443-v313435-v313436-v313437-v313438-v313439-v313442-v313441-v313440-v315642-v315644-v315647-v315648-v315649-v389151 1999 Mercury Grand Marquis 1996

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18138 Walker SoundFX Universal Muffler v313431-v313432-v558305-v313433-v313434-v313490-v313485-v313484-v313479-v313444-v313443-v313435-v313436-v313437-v313438-v313439-v313442-v313441-v313440-v315642-v315644-v315647-v315648-v315649-v389151 1999 Mercury Grand Marquis 1996Walker SoundFX mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, and spun locked heads for resistance to rupture from backfires. SoundFX mufflers are available in direct fit and universal styles, both with quality appearance and favorable acoustics. Oval Walker Universal SoundFX Muffler Type: OEM Standard Material: Steel with an