PLEASE NOTE: Due to tremendous demand, your order is likely to be delayed up to 8 weeks. We are doing everything we can to reduce this time. Sorry for the inconvenience, and Thank You for your patience.

1999-2004 Mustang 4.6L PowerFlo-X Crossover Pipe with Cats - Full Assembly

Free Shipping Price: $949.99 (USD)
Part #: M31032
The perfect complement to our LoudMouth® cat-back systems, the PowerFlo-X Crossover X-Pipes use free-flowing mandrel-bent tubing and a genuine X crossover to provide a significant horsepower increase over the restrictive stock cat pipes. They're available with high-flow catalytic converters and feature our exclusive three-piece design for unparalleled versatility and ease of installation.

NOTE: Includes detailed instructions and all required installation hardware. Photo may not show all included parts. 2004 SOHC and DOHC applications require O2 Extension Harness (# M31037).

  • Exclusive three-piece modular design makes it possible to upgrade to SLP Long-Tube Headers without purchasing a new X-pipe
  • Includes band clamps for easy interchangeability of cats
  • Equipped with a true X-pipe crossover, not a poor-flowing clamshell imitation
  • Constructed entirely from mandrel-bent stainless steel
  • Equipped with factory O2 bungs (where applicable)
  • Fits 1999-2004 SOHC and 2001-2004 DOHC models

Note: The use of long tube headers or x-pipe crossover pipes using aftermarket catalytic converters or no catalytic converters is illegal for installation and use on emission-legal vehicles when operated on public streets or highways. FOR OFF-ROAD USE ONLY.

WARNING: Cancer and Reproductive Harm -
  • Mustang 4.6L - 1999, 2000, 2001, 2002, 2003, 2004
  • Install Hours: 2
  • Tools: Shop Tools
  • Install Difficulty: Expert

SLP M31032 PowerFlo X-Crossover Instructions