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Twisted Steel Headers & Y-Pipe (Street Series)

Toyota Tacoma 05-11 V6-4.0L (2WD/4WD)
Part Number: 48-46001-YC

MSRP: $2,148.65


Twisted Steel Headers:
Constructed out of 1-5/8" 16-gauge stainless steel mandrel-bent tubing
Incorporates 3-to-1 mitered merge
3/8" thick CNC Laser cut flanges
Optimized tube lengths
Includes dual high flow, 200 CPSI metallic catalytic converters for better flow without check engine lights
Constructed out of mandrel-bent stainless steel tubing
True 2-to-1 mitered merge collector eliminates dead zones for improved flow
Mandrel-bent 2-1/2" to 3" piping transitions for better power
Test Results:
In testing, produced a max gain of +9 HP and +12 lbs. x ft. torque verified by our in house dyno (results from headers only). Read More


Header Features
High Flow Catalytic Converters:
Each header comes with 200 CPSI (cell per square inch) metallic high-flow catalytic converters for maximum flow.

Mitered Merge:
A 3-to-1 mitered merge decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response.

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

CNC Laser Cut Flanges:
Flanges are CNC laser cut not only to be visually appealing but for a durable, precise fit and leak-free seal.

Y-Pipe Features
Massive Y-Pipe:
The massive y-pipe is designed using a mitered merge that utilizes a 2-1/2" into 3" transition for optimum flow while removing turbulences.

True Mitered Merge:
This system utilizes a 2-to-1 mitered merge to eliminate dead space that can cause turbulence and hinder flow.

Retain Factory Sensors Mounting Locations:
aFe has designed this system to retain all your factory sensors for a hassle free installation. These headers also include 400 CPSI catalytic converters that are a direct bolt-on installation which requires no cutting or drilling to provide a hassle-free installation.

Emissions Disclaimer:
This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

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


Vehicle Applications

Year Make Model SubModel Engine Fuel
2005-2011Toyota Tacoma V6 4.0L Gas
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