Diesel and Gas Exhaust Combination Kits
Complete multi-component projects with parts grouped for a specific vehicle and exhaust configuration. This collection includes selected combinations of headers, Y-pipes, downpipes, up-pipes, intercooler piping, cat-back systems, and related EGR or exhaust hardware for compatible diesel and gas applications.
Vehicle coverage ranges from Ford Powerstroke, Chevrolet and GMC Duramax, Ram Cummins, and Nissan Titan XD diesel trucks to selected Nissan, Infiniti, and Porsche gas models. Some listings offer several configurations rather than one fixed package, allowing the included components to vary according to the option selected.
Review the exact contents of each option before ordering and confirm the model year, engine, chassis, pipe diameter, connection points, and existing vehicle configuration. Products that replace or modify emissions-related equipment may be restricted to competition or other permitted applications; buyers should verify product limitations and applicable regulations before purchase or installation.
Frequently Asked Questions
What is an Air Cleaner Kit?
An Air Cleaner Kit, often called a cold air intake (CAI) or performance intake system, is an upgrade that replaces your factory air box and filter with a high-flow filter and smoother intake tubing to improve airflow into your engine.
What are the benefits of installing an air cleaner kit?
A performance air cleaner kit increases airflow to your engine, which can improve throttle response, add horsepower and torque, enhance engine sound, and potentially improve fuel efficiency. It also provides easier access for filter maintenance.
Will an air cleaner kit increase horsepower?
Yes, most kits provide measurable gains, typically in the range of 5-20 horsepower depending on your vehicle and whether it's paired with other modifications. The improvement comes from reduced intake restriction and cooler air delivery.
Will it change the sound of my engine?
Yes, you'll hear more intake noise during acceleration, particularly on turbocharged vehicles where the turbo spool sound becomes more prominent. The engine will sound more aggressive and responsive.
Do I need tuning after installing an air cleaner kit?
Most modern air cleaner kits are designed to work with your factory tune without issues. However, for maximum performance gains, especially on newer vehicles with sophisticated ECUs, a custom tune is recommended to optimize air-fuel ratios.
Are air cleaner kits street legal?
Most quality air cleaner kits that are CARB-exempt (with an Executive Order number) are 50-state street legal. Always check if the specific kit has CARB certification for your state's emissions requirements.
Can I install an air cleaner kit myself?
Yes, most kits are designed for straightforward DIY installation with basic hand tools. Installation typically takes 30-90 minutes depending on your vehicle and involves removing the factory air box and installing the new components.
What's the difference between oiled and dry filters?
Oiled filters (like cotton gauze) use a light oil coating to trap particles and typically offer the best airflow. Dry filters use electrostatic or other dry media and are generally easier to maintain. Both provide excellent filtration when properly cared for.
How often do I need to clean and maintain the filter?
Most reusable performance filters should be cleaned every 30,000-50,000 miles under normal driving conditions, or more frequently if you drive in dusty environments. Cleaning kits with specific solutions are available for proper maintenance.