The Stainless Works catback for 2003–2011 Ford Crown Victoria and Mercury Grand Marquis 4.6L 2V is a 2.5" mandrel-bent rear exhaust that replaces the factory rear section. It features dual turbo S-tube mufflers and polished 3.5" factory-style tips, and attaches at flanged factory connection points or to Stainless Works headers with leads. It yields a fuller, factory-friendly tone with manifolds and a more aggressive note when paired with headers.
Stainless Works 2003-11 Crown Victoria/Grand Marquis 4.6L 2-1/2in Exhaust S-Tube Mufflers