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Flashark 3.5" Cold Air Intake for 1997–2003 Ford F-150 / 1997–2002 Ford Expedition — 4.6L & 5.4L Triton V8, Black Powder Coated, Dry Filter
Your Triton V8 was built to work. Whether you're towing a trailer, hauling lumber, or just daily-driving an old reliable Ford, the factory intake is holding it back. That plastic snorkel and restrictive paper filter were designed for noise compliance, not for the 4.6L or 5.4L Triton to breathe.
Flashark's 3.5" cold air intake replaces the factory plumbing with a mandrel-bent 89mm aluminum tube — black powder-coated for a clean, factory-like look that won't show dirt after a decade of use. The dual steel heat shields isolate the filter from the engine bay, pulling cooler air from the fender well. Intake temps drop 15–25°F, which on a naturally aspirated V8 means more consistent throttle response and improved low-RPM torque — right where you tow and haul.
The dry, reusable cone filter needs no oil. Clean it with soap and water, let it dry, and reinstall. No MAF contamination, no check engine light, no idle hunting. The CNC-machined MAF housing is calibrated to match the factory Triton ECU, so your truck runs exactly as Ford intended — just with more airflow and a deeper V8 growl under throttle.
Installation is about 60 minutes with basic hand tools. Every bracket, coupler, breather hose, and clamp is in the box.
Key Features
- 3.5" (89mm) mandrel-bent aluminum intake tube — black powder-coated finish, smooth interior walls; maximizes airflow for both 4.6L and 5.4L Triton V8 engines
- Dry high-flow cone filter (red) — washable, reusable, no oil required; won't foul your MAF sensor; clean every 15,000–20,000 miles
- Dual steel heat shields — two-piece design isolates filter from engine bay heat; routes intake to fender-well cold air; 15–25°F intake temp reduction
- Precision MAF calibration — CNC-machined 89mm housing delivers clean laminar airflow; no CEL, no idle surging, no hesitation
- Two breather hoses included — φ16×700mm and φ16×800mm, direct-fit for Triton PCV routing; no parts store runs needed
- Straight + reducer silicone couplers — multi-layer black silicone with stainless T-bolt clamps; leak-free seal under load
- No tune required — plug-and-play with factory ECU; 4.6L and 5.4L Triton PCM adapts fuel trims automatically
- Bolt-on installation — factory mounting points, no cutting or drilling; ~60 minutes with basic hand tools
FAQ
Q1: Will this cold air intake trigger a Check Engine Light (CEL) on my F-150 or Expedition?
A1: No. Unlike many aftermarket intakes that cause rough idling or CELs due to turbulent airflow, the Flashark intake features 3.5" precision mandrel-bent tubing. This ensures a smooth, laminar airflow over your sensor, delivering accurate data to your ECU and guaranteeing zero sensor errors.
Q2: Do I need a custom ECU tune after installing this Flashark intake kit?
A2: No custom tuning is required! This cold air intake system is designed as a direct bolt-on upgrade. Your factory ECU will automatically adjust to the increased, oxygen-rich airflow, optimizing combustion without the need for expensive aftermarket tunes.
Q3: Does this kit fit both the 4.6L and 5.4L V8 engines?
A3: Yes, this Flashark cold air intake is precisely engineered to fit both the 4.6L and 5.4L V8 engines found in the 1997-2003 Ford F-150 and the 1997-2002 Ford Expedition.
Q4: Do I need to oil the included air filter before use or during maintenance?
A4: Not at all. Our kit includes a premium Washable Dry Performance Filter. It requires absolutely no oiling, making maintenance incredibly easy and mess-free.
Q5: Will this aftermarket intake damage my Mass Air Flow (MAF) sensor?
A5: No, it is perfectly safe for your MAF sensor. Because we use a "Dry" filter media instead of an oiled filter, there is zero risk of oil residue coating or fouling your sensitive Mass Air Flow sensor.
Q6: How will this high-flow intake affect my truck's performance and towing?
A6: By replacing the restrictive factory plastic hoses with our massive 3.5-inch aluminum tubing, your V8 receives a much higher volume of cold, dense air. This directly translates to sharper throttle response, improved engine efficiency, and more low-end torque for towing.
Q7: Will this intake change the sound of my Ford V8 engine?
A7: Absolutely! Factory intakes are baffled to muffle engine sound. The Flashark high-flow system unlocks the true voice of your Triton engine, giving your F-150 or Expedition a deep, aggressive, and throaty roar during heavy acceleration.
Q8: What materials are used for the intake tubing? Is it durable?
A8: The intake pipe is constructed from lightweight, aerospace-grade T-6061 aluminum. It is finished with a durable, heat-resistant, and anti-corrosive gloss black powder coating that looks professional and withstands high engine bay temperatures.
Q9: What exactly is included in the box when I order?
A9: Your Flashark kit includes everything needed for installation: 1x 3.5" Aluminum Intake Pipe, 1x Washable Dry Cone Filter (Red), high-quality silicone couplers, heavy-duty clamps, and all necessary mounting hardware.
Q10: Is this cold air intake CARB compliant for use in California?
A10: No. This product is strictly NO CARB. It is not legal for sale or use in California on pollution-controlled motor vehicles.
| Year | Make | Model | Engine |
|---|---|---|---|
| 1997-2003 | Ford | F-150 | 4.6L V8 (Triton) |
| 1997-2003 | Ford | F-150 | 5.4L V8 (Triton) |
| 1997-2002 | Ford | Expedition | 4.6L V8 (Triton) |
| 1997-2002 | Ford | Expedition | 5.4L V8 (Triton) |
Note: Fits all 10th-gen F-150 body styles (Regular Cab, SuperCab, SuperCrew) and both 2WD/4WD. Does NOT fit 2004+ F-150 (11th gen), 2003+ Expedition (2nd gen), F-250/F-350 Super Duty, or any 3-valve Triton engine. NOT street legal in California or CARB-regulated states — for off-road / competition use only in those jurisdictions.
| Spec | Detail |
|---|---|
| Brand | Flashark |
| SKU | FLIS25126 |
| System Type | Cold Air Intake (CAI) |
| Tube Material | T-6061 Aluminum |
| Tube Finish | Black Powder Coated |
| Tube Diameter | 89mm (3.5") × 510mm length |
| Heat Shield | Dual steel plates (243×115×1.2mm + 115×39×1.2mm) |
| Filter Type | Dry, washable, reusable (no oil required) |
| Filter Color | Red conical |
| Breather Hoses | 2× (φ16×700mm + φ16×800mm) |
| Silicone Couplers | 1× straight (φ82–89mm) + 1× reducer (φ82–89mm) |
| Clamps | 4× narrow band clamps + T-bolt clamps |
| Intake Temp Reduction | 15–25°F vs. stock |
| Tune Required | No — fully compatible with factory ECU |
| Install Time | ~60 minutes |
| Warranty | 1 Year |
Fast Shipping Policy
Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return, provided the item is brand new, uninstalled, and in its original packaging. We cover return shipping for quality issues. Refunds are processed within 3-5 business days. Click for Return Policy
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