Sinister Diesel Cold Air Intake – 7.3L Powerstroke
Fits 1999–2003 Ford F-250 / F-350 / F-450 / F-550 Super Duty
Note: CARB EO # Pending – Not currently for sale in California.
Key Features
• Increases horsepower, throttle response, and overall engine performance
• CNC mandrel-bent aluminum tubing for smooth, unrestricted airflow
• High-flow reusable air filter maximizes airflow while filtering out contaminants
• Deep, aggressive turbo and intake sound
• Durable construction built to handle heat, vibration, and harsh conditions
• Easy bolt-on installation with all necessary hardware included
• Signature Sinister Blue powder coat finish adds a clean, custom look under the hood
Product Overview
The Sinister Diesel Cold Air Intake for the 7.3L Powerstroke is designed to bring your truck to life by dramatically improving airflow and throttle response. Replacing the restrictive factory intake, this system feeds your engine cooler, denser air—boosting horsepower, torque, and efficiency.
Each intake features precision CNC mandrel-bent aluminum tubing for consistent airflow and a perfect fit. The included high-flow, washable air filter traps harmful particles while maintaining superior air volume to the turbo, ensuring stronger, more efficient combustion. In addition to performance gains, you’ll notice a deeper, more pronounced intake tone every time you hit the throttle.
Built to last, this intake system combines rugged durability with a clean, high-performance look. Whether you use your Powerstroke for towing, daily driving, or performance applications, the Sinister Diesel Cold Air Intake delivers noticeable results in both power and sound.
Why Upgrade to the Sinister Diesel Cold Air Intake
• Improves horsepower and fuel efficiency by increasing airflow
• Enhances turbo spool and responsiveness
• Produces a rich, aggressive intake sound
• Washable, reusable filter for long-term use
• Designed for a perfect fit and simple DIY installation
What’s Included
• CNC Mandrel-Bent Aluminum Intake Tube
• Reusable Cotton Media Filter
• Installation Hardware
Frequently Asked Questions (FAQs)
Q: Will this improve performance?
A: Yes. The increased airflow improves engine breathing, which can result in better throttle response, horsepower, and fuel efficiency.
Q: Does it change the sound of my truck?
A: Absolutely. You’ll hear a deeper, throatier turbo spool and a stronger intake sound, especially under acceleration.
Q: Is this kit difficult to install?
A: No. The system is a direct bolt-on replacement that can be installed in under an hour with basic hand tools.
Q: How often should I clean the filter?
A: Cleaning intervals depend on your driving conditions, but most users clean the filter every 10,000–15,000 miles.
Q: Is this intake system CARB legal?
A: Not yet. The CARB EO number is pending, so it’s not currently available for sale in California.
