Does your Duramax L5P engine feel a little… sluggish? You know it has more power hidden inside, just waiting to be unleashed. But when you start looking for a cold air intake, it’s like a jungle out there! So many brands, so many promises, and it’s tough to figure out which one is truly the best for your truck. You want better performance, maybe a little more growl from your engine, but you don’t want to waste money on something that won’t make a difference.
Choosing the right cold air intake for your L5P can be confusing. You might be wondering what makes one better than another, or if it’s even worth the upgrade. Will it really give you that extra horsepower and torque you’re hoping for? Will it sound better? These are all good questions, and we’re here to help you answer them.
In this post, we’re going to break down what makes a great L5P cold air intake. We’ll look at what to expect from different types, what features really matter, and how to pick the one that’s perfect for your truck. Get ready to learn how to give your Duramax the cool, clean air it craves and unlock its full potential!
Our Top 5 L5P Cold Air Intake Recommendations at a Glance
Top 5 L5P Cold Air Intake Detailed Reviews
1. Banks Power – 17-19 Chevy/GMC 2500 L5P 6.6L Ram-Air Intake System (42249)
Rating: 9.4/10
Give your 2017-2019 Chevy or GMC 2500 truck with the L5P 6.6L Duramax engine a serious upgrade with the Banks Power Ram-Air Intake System (42249). This system is designed to help your engine breathe easier, leading to better performance and efficiency. It replaces your restrictive factory intake with a high-flow design that pulls in cooler, denser air. This means your truck can perform at its best, whether you’re towing a heavy load or just cruising down the road.
What We Like:
- Increased airflow: Your engine gets more air, which helps it run stronger.
- Excellent filtration: The high-flow air filter keeps dirt and debris out of your engine. This protects your engine from damage.
- Longer service life: The durable materials mean this intake will last a long time.
- Ram-Air design: This system uses the power of airflow to push more air into the engine.
What Could Be Improved:
- Installation can be a bit tricky for beginners. Some mechanical knowledge is helpful.
- The price is a bit higher than some other options on the market.
This Banks Power Ram-Air Intake System is a solid investment for any L5P Duramax owner looking for more power and better protection. You’ll notice a difference in how your truck performs.
2. Injen EVO7007CEvolution Roto-Molded Air Intake System W/ 8-Layer Oiled Cotton Gauze Air Filter for the 2017-2019 GM Diesel Truck V8-6.6L(td) Duramax L5P
Rating: 8.6/10
Give your 2017-2019 GM Diesel Truck with the powerful V8-6.6L Duramax L5P engine a boost with the Injen EVO7007 Evolution Roto-Molded Air Intake System. This system is designed to let your engine breathe easier, leading to better performance. It features a high-quality, 8-layer oiled cotton gauze air filter that traps dirt and debris while allowing more air to flow in. The roto-molded construction ensures durability and a perfect fit for your truck.
What We Like:
- It helps your engine get more air, which can make it run stronger.
- The special air filter is made to catch tiny particles, keeping your engine clean.
- The intake system is built tough with roto-molded plastic.
- It’s designed specifically for your Duramax L5P engine, ensuring a good fit.
- Installation is usually straightforward, so you can get it on your truck without too much trouble.
What Could Be Improved:
- Some users might find the initial cost a bit high.
- While it improves airflow, the sound of the engine might change, which some drivers may not prefer.
- The oiled filter needs regular cleaning and re-oiling to work its best.
Overall, this Injen air intake system offers a solid upgrade for your GM diesel truck. It’s a good way to help your engine perform at its best.
3. Rough Country Cold Air Intake for 17-19 Chevy/GMC 2500/3500HD 6.6L – 10478
Rating: 8.6/10
Looking to give your 2017-2019 Chevy or GMC 2500/3500HD with the 6.6L engine a boost? The Rough Country Cold Air Intake (part number 10478) is here to help. This system is designed to feed your truck’s engine cooler, denser air. Cooler air means more oxygen, and more oxygen helps your engine create more power. You’ll feel a difference in how quickly your truck responds when you hit the gas. Plus, it comes with a high-quality air filter you can clean and reuse.
What We Like:
- Gives you more horsepower and better throttle response.
- Uses cooler air to boost power.
- Comes with a premium, reusable air filter.
- Easy to install yourself at home.
- Rough Country offers support and a great warranty.
- Rough Country backs it with a Limited Lifetime Replacement Warranty.
What Could Be Improved:
- While installation is easy, some users might benefit from more detailed visual guides.
- The noise level might increase slightly for some drivers, which could be a con for those seeking a completely silent operation.
The Rough Country Cold Air Intake is a solid upgrade for your heavy-duty truck. It offers noticeable performance gains and is built to last.
4. Banks Power – 17-19 GM 6.6L L5P Ram-Air Intake System – Oiled Filter (42259-D)
Rating: 8.8/10
Are you looking to give your 2017-2019 GM 6.6L L5P Duramax engine a boost? The Banks Power Ram-Air Intake System with an oiled filter is here to help. This system is designed to let your engine breathe easier, which can mean better performance. It’s a direct replacement for your stock intake, making it a straightforward upgrade.
What We Like:
- Increased Airflow: This system is built to allow more air into your engine. More air means your engine can work more efficiently.
- Excellent Filtration: The oiled filter does a great job of trapping dirt and debris. This keeps your engine clean and running smoothly.
- Longer Service Life: With good maintenance, the oiled filter can last a long time. This saves you money on replacements.
- Ram-Air Design: The system is designed to capture cooler, denser air. This cooler air helps your engine produce more power.
What Could Be Improved:
- Installation Complexity: While a direct replacement, some users might find the installation process a bit challenging without prior experience.
- Filter Maintenance: Oiled filters require cleaning and re-oiling. This is an extra step compared to disposable filters.
This Banks Power intake system offers a solid way to improve your truck’s performance. It’s a great choice for drivers who want more from their L5P engine.
5. Injen EVO7007Evolution Roto-Molded Air Intake System W/SuperNano-Web Dry Air Filter for the 2017-2019 GM Diesel Truck V8-6.6L(td) Duramax L5P
Rating: 9.1/10
Give your 2017-2019 GM Diesel Truck with a V8-6.6L Duramax L5P engine a powerful upgrade with the Injen EVO7007Evolution Roto-Molded Air Intake System. This system comes with a SuperNano-Web Dry Air Filter that helps your truck breathe easier. It’s built tough in the USA and designed to make your truck perform better.
What We Like:
- Boosts engine performance for better power.
- The SuperNano-Web filter keeps your engine clean and safe.
- It’s made from strong, roto-molded material for lasting durability.
- Easy to install, saving you time and effort.
- Proudly made in the United States.
What Could Be Improved:
- The package is quite large, measuring 28.0″ (L) x 17.0″ (W) x 28.0″ (H), which might require more storage space.
This air intake system is a solid choice for Duramax owners looking for improved engine efficiency and power. It’s a well-made part that will serve your truck well.
Choosing the Best L5P Cold Air Intake: Your Guide to a Better Ride
So, you’re looking to upgrade your L5P Duramax truck? A cold air intake is a popular choice. It can help your engine breathe better. This means more power and maybe even better fuel economy. But with so many options, how do you pick the right one? This guide will help you understand what makes a good cold air intake and what to watch out for.
What to Look For in an L5P Cold Air Intake
Key Features to Consider
- Improved Airflow: The main goal is to let more air into the engine. Look for a design that is less restrictive than your stock intake.
- Better Filtration: A good filter traps dirt and debris. This protects your engine. Some filters are washable and reusable, which saves money.
- Sound: Some intakes change the sound of your truck’s engine. Many people like the deeper, more aggressive sound a cold air intake can create.
- Ease of Installation: Most kits are designed for DIY installation. Check if the kit comes with clear instructions and all the necessary parts.
- Durability: You want an intake that lasts. It should be built from strong materials that can handle the engine bay’s heat and vibrations.
Important Materials
The materials used in a cold air intake matter a lot. They affect how well it works and how long it lasts.
- Intake Tubing: This is often made from plastic or metal. High-density polyethylene (HDPE) is a common plastic. It’s heat-resistant and smooth inside for better airflow. Aluminum is another option. It’s strong and looks good, but it can get hot.
- Air Filter: Most performance filters use cotton gauze or synthetic material. Cotton gauze filters offer great filtration and airflow. Synthetic filters are also good and often easier to clean.
- Heat Shield: Some kits include a heat shield. This is usually made of plastic or metal. It keeps hot air from the engine bay away from the filter. This helps ensure the engine gets cooler air.
Factors That Affect Quality
Not all cold air intakes are created equal. Some things can make one better than another.
- Design and Shape: The shape of the intake tube and the way it directs air are important. A smooth, mandrel-bent tube helps air flow without interruption.
- Filter Type and Size: A larger, high-flow filter can let in more air. Make sure the filter is also very good at trapping dirt.
- Sealing: A good seal around the airbox and filter prevents hot air from sneaking in. This is crucial for cold air intake performance.
- Brand Reputation: Stick with brands that have a good name in the truck performance world. They usually make reliable products.
User Experience and Use Cases
What Users Say
Many L5P owners report that a cold air intake makes their truck feel more responsive. They notice quicker acceleration. Some also say they hear a satisfying growl from the engine under load. Fuel economy improvements can vary. They often depend on driving habits.
When to Use a Cold Air Intake
A cold air intake is a great upgrade for L5P trucks that are used for:
- Everyday Driving: You’ll feel a difference in how your truck drives around town.
- Towing and Hauling: The extra airflow can help your engine work more efficiently when pulling heavy loads.
- Performance Enthusiasts: If you like to get the most out of your truck, a cold air intake is a good starting point for more modifications.
Frequently Asked Questions (FAQ) for L5P Cold Air Intakes
Q: What is a cold air intake?
A: A cold air intake is a part that replaces your truck’s factory air intake system. It’s designed to bring cooler, denser air into the engine. Cooler air helps your engine make more power.
Q: Will a cold air intake void my truck’s warranty?
A: Generally, installing a cold air intake will not void your entire warranty. However, if a problem arises that can be directly linked to the aftermarket intake, the manufacturer might deny a warranty claim for that specific issue.
Q: How much horsepower can I expect from a cold air intake?
A: Horsepower gains from a cold air intake alone are usually modest, often in the range of 5-15 horsepower. The biggest benefits are often seen in throttle response and overall engine efficiency.
Q: Is a cold air intake hard to install?
A: Most cold air intake kits are designed for easy installation. Many can be installed with basic tools in a couple of hours. Clear instructions are usually included.
Q: How often do I need to clean or replace the air filter?
A: This depends on the filter type and how dusty your driving conditions are. Washable filters can be cleaned and reused for many miles. Disposable filters need to be replaced when they get dirty.
Q: Will a cold air intake make my truck louder?
A: Yes, most cold air intakes will change the sound of your engine. You will likely hear a more noticeable intake noise, especially when you accelerate.
Q: Can I use my stock air filter with a cold air intake?
A: No, a cold air intake system is designed to work with its specific aftermarket filter. You cannot use your stock filter with an aftermarket intake.
Q: Do cold air intakes really improve fuel economy?
A: Some users report slight improvements in fuel economy, but it’s not guaranteed. It often depends on your driving style. If you use the extra power to accelerate faster, you might not see better mileage.
Q: What is the difference between plastic and metal intake tubing?
A: Plastic tubing, like HDPE, is often better at insulating against engine heat. Metal tubing, like aluminum, can look impressive but may absorb more heat. Both can provide good airflow if designed well.
Q: Should I get a kit with a heat shield?
A: A heat shield is a good idea, especially if your truck’s engine bay gets very hot. It helps keep the intake air cooler, which is the main benefit of a cold air intake.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
Hey there, My name is Joe Martin & I’m the author of OffroadersGuild.com. I’ve been hitting the dirt for a while now. I’ve been off-roading in all sorts of vehicles, from Jeeps to trucks and everything in between.
I’ve also built and modified a few off-road vehicles of my own, so I know what works and what doesn’t when it comes to upgrading and modifying off-road vehicles. I started this website to share my experience and help others get the most out of their off-roading adventures. Let’s hit the trails!