2004-2008 F150 4.6/5.4 Super Cab 6.5 Bed/Super Crew 5.5 Bed LoudMouth II Exhaust System

Free Shipping Price: $399.95 (USD)
Part #: F31070
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Product Features

  • Limited Lifetime Warranty
  • Aggressive muscle-car rumble
  • Modular design lets you bolt-in a pair of Loud Mouth resonators (#31062, not included) for a louder system
  • Hand-crafted from stainless steel
  • Easy bolt-on installation
  • Distinctive stainless tips that rotate for the look you want
  • Warranty void if used in extreme off-road situations

A Cat-Back Exhaust System to Wake Up Your 2004.5-2008 Ford F150. LoudMouth® now offers an all-new side exit LoudMouth II® modular catalyst-back exhaust system for your 2004.5-2008 Ford F150. It offers up to 10 extra horsepower and 10 foot-pounds of torque with an aggressive muscle-car rumble you'll love. The secret to the system's distinctive sound is a pair of stainless steel resonators, highly polished and stamped with the SLP logo. The additional performance comes from the free-flow design. The system features a pair of attractive 3.5" dual-wall stainless steel tips that look great peeking out of the passenger side. The modular design gives you flexibility to change to a more aggressive sound in minutes by purchasing a pair of bolt-in bullet-style resonators (#31062). The exhaust system is hand-crafted from 2.5" stainless steel, and is covered by our Limited Lifetime Warranty.

NOTE**Warranty void if used in extreme off-road situations

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
  • F150 4.6L, 5.4L - 2004, 2005, 2006, 2007, 2008
Bed Size Include:
  • Super Cab 6.5 Bed
  • SuperCrew 5.5 Bed
  • Install Hours: 1.5
  • Tools: Basic Tools
  • Install Difficulty: Intermediate

SLP F31070 F-150 Loud Mouth II Exhaust Instructions