Cold Air Intake Kit for 2001-2005 Lexus IS300 Base Sedan / Sportcross Wagon 3.0L DOHC (2JZ-GE)

The 2JZ-GE is one of the most celebrated inline-six engines ever built — but Lexus choked it with a restrictive factory airbox designed for silence, not airflow. That sealed plastic box, multiple resonator chambers, and paper panel filter force the engine to work harder just to inhale. The result: lazy throttle response and a muted exhaust note that buries the very character that makes the IS300 special.

This Flashark cold air intake replaces the entire factory system with a single-piece 70mm mandrel-bent aluminum intake tube and a high-flow dry cone filter. The wider, smoother airflow path reduces intake restriction and delivers denser, cooler air directly to the throttle body. On a stock 2JZ-GE, expect 5-10 wheel horsepower gain — but the real difference is the sharpened throttle response and mid-range torque feel that transforms how the car pulls from 3,000 RPM onward.

Everything mounts to factory bolt locations with the included bracket and hardware. No cutting, no drilling, no check engine lights. With basic hand tools in about 60 minutes, you unlock the induction sound this inline-six was always meant to make.

Key Features

70mm Mandrel-Bent Aluminum Intake Tube — Single-piece construction with integrated mounting flange. Finished in heat-resistant matte black powder coat. Delivers a smooth, unrestricted airflow path from filter to throttle body while resisting underhood heat soak.

High-Flow Dry Cone Filter — Red cotton-gauze element, 120mm top / 155mm base / 130mm height, 70mm inlet. Dry-type media requires no oiling — clean, rinse, dry, and reinstall. Washable and reusable for the life of the vehicle.

Direct-Fit Silicone Coupler — 70mm × 65mm straight coupler bridges the intake tube to the throttle body with a precise, airtight seal. Heat-resistant silicone won't crack or deform at engine-bay temperatures.

Dual Breather Hoses — Two PCV/vacuum hoses (D13-d7 × 380mm and D13-d7 × 500mm) connect directly to the factory PCV valve and vacuum ports. Maintains closed-loop crankcase ventilation — no CEL triggers.

Complete Installation Hardware — Filter clamp ×1, narrow clamps ×2, mini clamp ×1, M6 anti-vibration mount bracket with washer and lock nut, M6×8 socket-head cap screws ×2, hex key ×1. Everything shown is everything included.

True Bolt-On Design — Integrated mounting bracket aligns with factory bolt holes. No cutting, drilling, or permanent modification required. The stock airbox can be reinstalled at any time.

Aggressive 2JZ Induction Sound — The open-element cone filter and aluminum tubing produce a deep, resonant intake growl under acceleration — exactly what the 2JZ-GE was built to deliver above 4,000 RPM.

5-10 WHP Gain on Stock Tune — Dyno-verified improvement on an otherwise stock 2JZ-GE. Combined with sharper throttle tip-in and stronger mid-range pull. No ECU tune required.

Specifications

SKU: FLIS25041
Intake Tube Material: Aluminum
Intake Tube Finish: Matte black powder-coated
Intake Tube Diameter: 70mm (2.76")
Filter Type: Dry (no oil required)
Filter Media: Red cotton-gauze, washable & reusable
Coupler: Straight silicone
Total Weight: 3.0 kg (6.6 lbs)
Estimated Install Time: 45–90 minutes
Tune Required: No (factory ECU adapts)

Package Includes

1 × Aluminum intake tube
1 × High-flow air filter
2× Straight silicone coupler
3x stainless steel hose clamps
1x Mounting bracket and hardware kit