Cold Air Intake for 2001-2005 Lexus IS300 Altezza 3.0 L6

The factory airbox on the 2001–2005 Lexus IS300 and Toyota Altezza is designed for silence, not performance. Behind that restrictive intake maze sits the legendary 2JZ-GE 3.0L inline-six — an engine capable of far more than the stock intake lets it breathe.

Flashark's cold air intake kit replaces the entire factory airbox assembly with a mandrel-bent aluminum intake tube and a high-flow dry cone filter. The result is a noticeably sharper throttle pedal, a deeper induction growl that the 2JZ deserves, and a cooler, denser air charge entering the combustion chamber. On a healthy 2JZ-GE, you can expect 5–10 WHP and improved mid-range pull — especially when paired with a free-flowing exhaust.

Installation takes 45–90 minutes with basic hand tools. No cutting, no welding, no permanent modifications. Everything bolts directly onto the factory mounting points. The dry filter requires no oiling and can be cleaned with compressed air for years of service — perfect for a daily-driven IS300 or weekend Altezza build.

Key Features

2JZ-GE–specific design – Engineered for the naturally aspirated 3.0L inline-6 found in 2001–2005 Lexus IS300 (USDM) and Toyota Altezza (JDM); not compatible with turbocharged 2JZ-GTE setups

Mandrel-bent aluminum intake tube – Black powder-coated finish resists heat and corrosion; smooth internal bends maintain airflow velocity from filter to throttle body

High-flow dry cone filter – Oil-free design means no MAF sensor contamination risk; washable with compressed air, no special cleaning kit required

Heat shield included – Shields the filter from direct engine bay heat; helps maintain cooler intake air temps compared to an open-element setup

5–10 WHP on stock 2JZ-GE – Realistic gains on an otherwise stock engine; gains scale when paired with exhaust/header upgrades

Bolt-on, no fabrication – Reuses factory mounting points; all couplers, clamps, and hardware included

Inline-6 induction sound – Unlocks the 2JZ's signature intake growl without being obnoxious at cruise

45–90 minute DIY install – Uses basic hand tools (socket set, screwdrivers); no lift required

Specifications

Brand: Flashark
SKU: FLIS25129
Type: Cold Air Intake Kit (Heat Shield Style)
Pipe Material: Aluminum (mandrel-bent)
Pipe Finish: Black powder-coated
Filter Type: Dry (oil-free, reusable)
Filter Color: Red
Heat Shield: Included
Intake Diameter: 3.0 inch (76mm)
Installation: Bolt-on, no cutting or welding required

Package Includes

1x Black powder-coated aluminum mandrel-bent intake tube
1x High-flow dry cone air filter (red)
1x Heat shield assembly with mounting bracket
1x Set of silicone couplers
3x Set of stainless steel hose clamps
1x Set of mounting hardware (bolts, nuts, washers)
1x Installation guide