Weapon R 601-148-101 Secret Weapon Intake for 2005-2008 Toyota 4Runner 4.7L

Vehicle Fitment

• 2005-2008 Toyota 4Runner (4.7L V8)

Fitment Notes

• This fitment is sourced from a single retailer listing (Throtl); I could not independently corroborate it against a second trusted source, so confirm against Weapon R's own site or contact them directly before ordering
• Not legal for sale or use in California and other CARB-regulated states

Features

• Patented Dual Airflow Technology creates two distinct air velocity profiles for increased intake volume
• Can convert between cold air intake and short ram intake configurations
• CNC mandrel-bent 6061 aluminum construction, polished finish
• Tuned SW1 air filter with velocity stack to increase velocity and reduce turbulence
• Direct bolt-on installation, no tuning required
• Backed by a 1 Million Mile Limited Warranty

Specifications

• Construction: CNC mandrel-bent 6061 aluminum
• Finish: Polished
• Filter type: SW1 open-pore, high-density reusable foam
• Emissions: Not CARB compliant

Included Components

• 1x Weapon R Secret Weapon Intake Tube (polished)
• 1x SW1 Air Filter
• Installation hardware

Product Description

The Weapon R 601-148-101 Secret Weapon Intake is designed for the 4.7L V8 Toyota 4Runner, using Weapon R's patented Dual Airflow Technology to create two different air velocity profiles that feed the engine significantly more air than a conventional intake. The versatile design lets owners run it as a cold air intake for cooler, denser air, or reconfigure it as a short ram intake when needed.

Built from CNC mandrel-bent 6061 aluminum with a high-show polished finish, the system installs as a direct bolt-on replacement for the factory airbox, with no tuning required. Backed by a 1 Million Mile Limited Warranty, it's aimed at 4Runner owners looking for a straightforward intake upgrade, though it's worth noting it's not legal for sale or street use in California and other CARB states.