The 2.5L AMC and 2.4L PowerTech four-cylinders in the TJ Wrangler are torque-focused engines designed for crawling, not highway speed. The factory airbox — with its restrictive snorkel, baffled resonator chambers, and corrugated rubber intake hose — was engineered for noise compliance, not airflow. On the highway or with larger tires, that restriction becomes a real liability.

Flashark's intake kit replaces the entire factory assembly with a 3-inch (Φ76 mm) thermally wrapped aluminum intake tube and a high-flow dry-cotton conical filter. The thermal wrap is the key differentiator here: unlike bare-metal pipes that absorb radiant heat from the exhaust manifold, the wrapped tube actively rejects engine-bay heat, keeping intake air cooler where it matters most — in the tube itself.

Installation uses the TJ's factory airbox mounting points, no cutting or welding required. You get improved throttle response, a deeper induction note that actually sounds like a real engine, and a cleaner engine bay — all bolt-on and reversible in under an hour.

Key Features

3" Thermal-Wrapped Aluminum Intake Tube — Mandrel-bent aluminum pipe with integrated thermal insulation wrap that rejects radiant heat from the exhaust side. Not just a painted pipe — the wrap layer actively keeps intake air cooler than bare metal alternatives.

High-Flow Dry Cotton Conical Filter — Red cotton gauze cone: 120 mm steel top cap / 180 mm PU base / 76 mm inlet with dedicated clamp. Washable and reusable — no oil required, ever.

Precision Silicone Reducer Coupler — Φ63 × Φ76 mm reducer transitions smoothly from the 3" intake tube to the factory throttle body inlet, eliminating the step-change turbulence of the stock rubber accordion hose.

Direct-Fit CCV Breather Line — Reinforced D19-d13 × 175 mm breather hose with Φ10 mm brass nipple, connects directly to factory PCV/CCV plumbing on both 2.5L AMC and 2.4L PowerTech engines.

Complete Bolt-On Hardware Kit — Aluminum bracket with brass-sleeved M6 anchor bolt, anti-vibration foam strip (560 mm), 2× narrow-band stainless steel clamps (84×108 mm), and full M6 washers and nuts.

No-Trim, No-Weld Installation — Uses factory airbox mounting points. Installation is fully reversible in 45-60 minutes with basic hand tools.

No Check Engine Light — Maintains correct MAF/IAT sensor positioning and factory breather routing on both naturally aspirated 2.5L and 2.4L applications. No tune required on compatible engines.

Protective Plastic Shield Included — Adds a layer of splash and debris protection for the filter, a practical inclusion for a vehicle that sees off-road use.

Specifications

Filter Type: Dry cotton gauze
Pipe Material: Heat-insulated aluminum piping
Main Tube Diameter: Φ76 mm (3 inches)
Reducer Coupler: Φ63 × Φ76 mm silicone
Clamps: 8× narrow-band stainless steel 84×108 mm
Anti-Vibration Strip: 1× foam, 560 mm
Protective Shield: 1× plastic filter shield
Weight: Approximately 2.9 kg
Estimated Install Time: 45–60 minutes

Package Includes

1× 3-Inch Thermal-Wrapped Aluminum Intake Tube
1× High-Flow Red Dry Cotton Conical Filter (120/180/76 mm)
1× Φ63 × Φ76 mm Silicone Reducer Coupler
1× Reinforced Breather Hose (D19-d13 × 175 mm)
1× Φ10 mm Brass Breather Nipple
8× Narrow-Band Stainless Steel Clamps (84×108 mm)
1× Aluminum Mounting Bracket with Brass-Sleeved M6 Anchor Bolt
1× Anti-Vibration Foam Strip (560 mm)
1× Plastic Filter Protective Shield
1× Complete M6 Fastener Set (washers and nuts)