Flowmaster 615142
Flowmaster 615142 Delta Force Performance Air Intake System User Manual
Enhance your vehicle's performance with the Flowmaster Delta Force Air Intake.
1. Introduction
The Flowmaster Delta Force Performance Air Intake system is designed to optimize the air intake for your 2007-2011 Jeep Wrangler with a 3.8L engine. This system is engineered to improve engine efficiency and performance by providing a less restrictive airflow path to the engine.
It features a custom-molded black Cross-Linked Polyethylene (XLPE) high-flow intake tube, black anodized aluminum fittings, and high-quality reinforced silicone couplers, all secured with stainless steel hardware. The system includes a large diameter, high-flow conical shaped 8-layer cotton gauze air filter, which is designed to trap more dirt than typical 6-layer designs, ensuring cleaner air for your engine.

Figure 1.1: Assembled Flowmaster Delta Force Performance Air Intake System.
2. Product Features
- Serviceable Lifetime High-Flow 8-Layer Cotton Gauze Filter: Designed for superior filtration and long-term use, capable of being cleaned and reused.
- Cross-Linked Polyethylene (XLPE) High-flow Intake Tube: Custom-molded for optimal airflow and durability.
- Serviceable with Delta Force Cleaning Kit: The air filter can be maintained using the Flowmaster Delta Force Cleaning Kit (sold separately).
- High Quality Components With Custom Look: Constructed with premium materials for reliability and an enhanced under-hood appearance.
- No Cutting or Drilling For Easy Installation: Engineered for a direct-fit installation without requiring permanent modifications to your vehicle.
3. Package Contents
Verify that all components listed below are present in your package before beginning installation.
- Cold Air Intake Assembly
- Hardware Kit (includes clamps, bolts, nuts, washers, etc.)
- Custom-fit black powder-coated air dam with attachment brackets
- Soft bumpers for metal-to-metal contact elimination
- High-flow conical shaped 8-layer cotton gauze air filter
- Black anodized aluminum fittings (as applicable)
- High quality reinforced silicone couplers

Figure 3.1: All components included in the Flowmaster Delta Force Performance Air Intake System package.
4. Setup and Installation
The Flowmaster Delta Force Performance Air Intake system is designed for a straightforward installation without the need for cutting or drilling. It is recommended to have basic mechanical knowledge and tools for installation. Always ensure the vehicle's engine is cool before beginning any work.
4.1 Pre-Installation Checklist
- Ensure the vehicle is parked on a level surface and the parking brake is engaged.
- Disconnect the negative terminal of the vehicle's battery.
- Allow the engine to cool completely.
- Review all components against the package contents list.
4.2 Installation Steps (General Guidelines)
- Carefully remove the factory air intake system components, including the air box, intake tube, and filter. Refer to your vehicle's service manual for specific instructions on removing OEM parts.
- Install the custom-fit black powder-coated air dam using the provided attachment brackets. Ensure it is securely mounted.
- Attach the high-flow conical shaped 8-layer cotton gauze air filter to the intake tube.
- Connect the XLPE high-flow intake tube to the engine's throttle body using the reinforced silicone couplers and stainless steel clamps.
- Secure all connections and ensure proper alignment of the system. Use the soft bumpers to prevent any metal-to-metal contact under the hood.
- Reconnect the negative terminal of the vehicle's battery.
- Start the engine and check for proper operation and any unusual noises.
For detailed, step-by-step installation instructions, please refer to the specific guide provided with your product or visit the Flowmaster official website.
5. Operating Considerations
Once installed, the Flowmaster Delta Force Performance Air Intake system operates automatically with your vehicle's engine. It is designed to provide a consistent increase in airflow, which can lead to improved throttle response and engine performance.
No specific user interaction is required for the operation of the air intake system itself. The system is designed to work seamlessly with your vehicle's existing engine management system.
Video 5.1: An overview of Flowmaster's manufacturing process and product applications, demonstrating the quality and performance of their automotive components.
6. Maintenance
Regular maintenance of your Flowmaster Delta Force Performance Air Intake system, particularly the air filter, is crucial for maintaining optimal performance and longevity.
6.1 Air Filter Cleaning
The 8-layer cotton gauze air filter is serviceable and designed for a lifetime of use. It should be cleaned periodically depending on driving conditions and mileage. Flowmaster recommends using the official Delta Force Cleaning Kit for proper maintenance.
- Remove the air filter from the intake system.
- Apply the cleaning solution from the Delta Force Cleaning Kit to both sides of the filter. Allow it to soak for the recommended time.
- Rinse the filter from the clean side out with low-pressure water until the water runs clear.
- Allow the filter to air dry completely. Do not use compressed air or heat to dry the filter, as this can damage the cotton gauze.
- Once dry, apply the filter oil from the Delta Force Cleaning Kit evenly to all pleats. Ensure the filter is lightly coated but not saturated.
- Reinstall the clean and oiled air filter into the intake system.
Refer to the specific instructions provided with your Delta Force Cleaning Kit for detailed steps and recommended cleaning intervals.
7. Troubleshooting
If you experience any issues after installing your Flowmaster Delta Force Performance Air Intake system, consider the following common troubleshooting steps:
- Check Engine Light: Ensure all sensors and vacuum lines are properly connected and sealed. A loose connection can trigger a check engine light. Double-check the Mass Air Flow (MAF) sensor connection if applicable.
- Loose Connections: Verify that all clamps, couplers, and mounting hardware are securely tightened. Air leaks can affect performance.
- Unusual Noises: Inspect the intake tube and filter for any obstructions or contact with other engine components. Ensure the air dam is properly installed and not vibrating.
- Reduced Performance: Confirm the air filter is clean and properly oiled. An overly dirty or improperly oiled filter can restrict airflow.
If problems persist, it is recommended to consult a qualified automotive technician or contact Flowmaster customer support.
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | Flowmaster |
| Model Number | 615142 |
| Product Type | Performance Air Intake System |
| Filter Type | Conical, 8-Layer Cotton Gauze |
| Intake Tube Material | Cross-Linked Polyethylene (XLPE) |
| Compatibility | 2007-2011 Jeep Wrangler with 3.8L engine |
| Installation | No cutting or drilling required |
| Item Weight | 8.2 pounds |
| Product Dimensions | 16.25 x 16.25 x 16.5 inches |
| UPC | 700042036295 |
9. Important Safety Information
CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Always follow all local and national safety regulations when installing or maintaining automotive parts. Wear appropriate personal protective equipment (PPE) such as safety glasses and gloves. Ensure the vehicle is stable and secure before working underneath it.
10. Warranty and Support
Flowmaster products are manufactured to high standards and are backed by a manufacturer's warranty. For specific warranty details, including coverage and duration, please refer to the warranty card included with your product or visit the official Flowmaster website.
For technical assistance, installation questions, or customer support, please contact Flowmaster directly through their official channels. Contact information can typically be found on their website or product packaging.
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