aFe Power 48-43003-YC Twisted Steel Headers With Y-Pipe and Cats 2004-2008 Ford F-150 5.4

aFe Power 48-43003-YC Twisted Steel Headers With Y-Pipe and Cats 2004 2005 2006 2007 2008 Ford F-150 5.4

Twisted Steel Headers Features:
• Constructed out of 1-5/8" 16-gauge stainless steel mandrel-bent tubing
• Incorporates 4-to-1 formed collectors
• Optimized tube lengths 
• Utilizes ball socket connections
Y-Pipe Features:
• Constructed out of mandrel-bent stainless steel tubing
• True 2 into 1 mitered merge collector eliminates dead zone for improved flow
• Mandrel-bent 3" stainless steel tubing for better flow and added power
• Incorporates high-Flow, 49 state-legal 400 cell catalytic converters for better flow without check engine lights
Test Results:
• Added an astounding +17horsepower and +24lbs. x ft. of torque as verified by our in house dyno 

Factory Mounting Locations:
A direct bolt-on system which requires no cutting or drilling to provide a hassle-free installation.

Formed Collectors:
4-to-1 formed collectors decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response.

Ball Socket Connections:
Unique ball socket connections are used for an easier installation. The ball socket connections also requires no gaskets, giving you a leak-free seal.

Optimized Tube Lengths:
Tube lengths are optimized for true pulse control technology which improves flow and performance.

Headers and Y-pipe sold as set, not available individually

aFe headers and exhaust are engineered and manufactured in our Corona, California manufacturing facility.

Notes

This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.

WARNING: Cancer and/or Reproductive Harm — www.P65Warnings.ca.gov

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