Description 03-11 Crown Victoria/ Grand Marquis 4.6L 2V 2.5″ Catback Bolt-on Exhaust system Dual 3.5″ dia polished Marauder style tips Fits flanged factory connection points Mandrel bent dual 2.5″ diameter 304 Stainless steel piping and includes an X pipe Works with stock manifolds or Stainless Works headers with leads. Confirmed fitment on 2003-2011 Crown Vics and Grand Marquis models. Choice of dual chambered turbo mufflers or dual s-tube mufflers Chambered mufflers are quieter and what are suggested for use with long tube headers. S-tube mufflers are more aggressive sounding. If you want loud, this is the muffler for you! May require removal of fire suppression system if your car is equipped. You will need driver’s side muffler and tailpipe hangers if you currently have a single exhaust. Unfortunately they are no longer available new from Ford so your stuck with used. We have a used set of driver’s side muffler and tailpipe hangers available here: Used Exhaust Hanger kit FREE SHIPPING to the 48 states For installation tips check out our thread on CrownVic.net
