Weapon R 305-142-101 Secret Weapon Air Intake for 2003-2008 Corolla

Vehicle Fitment

• 2003-2008 Toyota Corolla (1.8L)

Fitment Notes

• Not CARB compliant - not legal for sale or use on pollution-controlled vehicles in California.

Features

• Patented Secret Weapon design creates two distinct air velocity profiles for increased airflow
• Claims up to 3x more airflow volume compared to conventional intake systems
• Intake pipe CNC mandrel-bent from 6061 aluminum, polished to a show-quality finish
• SW1 air filter features a tuned velocity stack to increase velocity and reduce turbulence
• Open-pore, high-density reusable foam filter element
• Backed by a 1-million-mile limited warranty

Specifications

• Material: 6061 Aluminum
• Finish: Polished
• Filter Type: Reusable Foam (SW1)

Included Components

• 1x Secret Weapon Intake Pipe
• 1x SW1 Air Filter
• Installation Hardware

Product Description

The factory intake on the 1.8L Corolla is designed for quiet operation, not airflow - leaving real performance on the table for owners looking for a sharper throttle response. The Weapon-R 305-142-101 replaces it with a patented Secret Weapon design that creates two separate air velocity profiles through the intake pipe, a concept that noticeably boosts the volume and speed of air reaching the engine.

The intake pipe itself is CNC mandrel-bent from 6061 aluminum and polished to a show-quality finish, paired with the reusable SW1 foam filter and its tuned velocity stack for reduced turbulence. Backed by an unusually strong 1-million-mile warranty, it's a durable bolt-on upgrade for daily-driven Corollas - just note it's not CARB legal, so it's off the table for emissions-regulated use in California.