Has your Duramax L5P engine ever felt a little… sluggish? You know that feeling when you want more power, better fuel economy, or just a cooler sound from your truck? Many L5P owners feel the same way. Upgrading your cold air intake is a popular way to give your truck a boost, but with so many choices out there, it can be tough to pick the right one.
You might be wondering which intake will actually make a difference, what the real benefits are, and if it’s worth the money. It’s easy to get lost in all the technical terms and promises. That’s why we’re here to help you cut through the confusion.
In this post, we’ll break down exactly what makes a great L5P cold air intake. We’ll look at what to search for, what to avoid, and how to choose the perfect upgrade for your truck. By the end, you’ll have a clear idea of how to get the most out of your L5P and make your truck perform its best. Let’s dive in and find the best cold air intake for your Duramax!
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: 8.8/10
Upgrade your 2017-2019 Chevy or GMC 2500 with the L5P 6.6L Duramax engine to the Banks Power Ram-Air Intake System (42249). This system is designed to give your truck a boost in performance and efficiency. It helps your engine breathe easier, which can lead to better power and fuel economy. The engineers at Banks Power created this system to be a direct fit, making installation straightforward for most DIYers. It’s a smart upgrade for anyone looking to get more out of their diesel truck.
What We Like:
- It really helps your engine get more air, which can make your truck feel stronger.
- The filter does a great job of keeping dirt and debris out of your engine, protecting it.
- You won’t have to replace the filter very often, saving you time and money.
- This type of intake, a short ram, is known for its ability to deliver cool air quickly.
- The Ram-Air design helps to force more air into the engine, boosting performance.
What Could Be Improved:
- While it improves airflow, some users might want even more dramatic power gains.
- The price point might be a consideration for some budget-conscious buyers.
This Banks Power Ram-Air Intake System offers a solid improvement for your truck. It’s a worthwhile investment for better engine performance and protection.
2. Injen Technology – Evolution Roto-Molded Air Intake System (EVO7007)
Rating: 8.8/10
Ready to give your GMC Sierra or Chevrolet Silverado a serious power boost? The Injen Technology Evolution Roto-Molded Air Intake System (EVO7007) is here to help. This intake is designed specifically for 2017-2019 Sierra 2500HD and Silverado 2500HD models equipped with the powerful 6.6L Duramax L5P engine, as long as your vehicle’s 8th digit VIN is a “Y”. It’s engineered to deliver more horsepower and torque without needing to reprogram your truck’s computer.
What We Like:
- It adds up to 34 horsepower and 76 lb-ft of torque, making your truck feel stronger.
- The intake produces an exciting, aggressive sound when you step on the gas.
- Its durable roto-molded polyethylene housing and tube protect the air filter.
- The Clear-View badge makes it super easy to check your air filter’s condition.
- It uses strong silicone couplers and quality stainless steel clamps for a secure fit.
- The system looks great under the hood and fits just like the original parts.
- It comes with a Limited Lifetime Warranty for peace of mind.
What Could Be Improved:
- This product is not legal for sale or use in California.
This Injen intake system is a fantastic upgrade for Duramax owners looking for improved performance and a more exciting driving experience. Get ready to feel the difference!
3. Banks 42135 Ram Air Intake System
Rating: 8.7/10
The Banks 42135 Ram Air Intake System is designed to give your vehicle’s engine more air. More air means your engine can work better. This system is a great upgrade for many cars and trucks. It includes everything you need to install it, like the filter, housing, and all the small parts. It even helps your engine breathe in way more air than the original parts, up to 57% more than stock and other brands! This means your engine can perform at its best.
What We Like:
- It significantly improves airflow to your engine, making it breathe better.
- The system outflows stock and competitor intakes by a large margin, up to 57%.
- It comes as a complete package with all necessary components for installation.
- The design is focused on boosting engine performance.
What Could Be Improved:
- Installation might require some mechanical knowledge, though it’s a complete kit.
- The increased airflow might lead to a slightly louder engine sound, which some drivers might not prefer.
If you want your engine to get more air and perform better, the Banks 42135 Ram Air Intake System is a strong contender. It’s a well-rounded upgrade that delivers noticeable improvements.
4. aFe Power 51-74008 Momentum HD Performance Cold Air Intake System
Rating: 9.5/10
Upgrade your 2017 GM Diesel truck with the aFe Power 51-74008 Momentum HD Performance Cold Air Intake System. This system is designed to give your truck a boost in power and airflow. It’s a direct fit for your V8-6.6L (td) L5P engine, making installation a breeze.
What We Like:
- It adds up to +15 horsepower and +37 lbs. x ft. of torque.
- It lets in up to 59% more air than your factory intake.
- The Pro DRY S filter is oil-free, meaning you don’t need to oil it. This saves you time and effort.
- You won’t need to cut or drill any factory parts, which makes installation quicker and easier.
- It’s a perfect fit for 2017 GM Diesel Trucks with the V8-6.6L (td) L5P engine.
What Could Be Improved:
- The product is a single pack, so you only get one filter.
- While the installation is easy, it still requires some mechanical knowledge.
This aFe Power intake system is a solid upgrade for your diesel truck. You’ll feel the difference in power and performance.
5. Rough Country Cold Air Intake for 17-19 Chevy/GMC 2500/3500HD 6.6L – 10478
Rating: 9.2/10
Want 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 designed to do just that. It helps your truck breathe better, which can lead to more power and a quicker reaction when you press the gas pedal. This upgrade brings cooler, denser air into the engine, meaning more oxygen for a better burn and a noticeable increase in performance. Plus, it comes with a high-quality, reusable air filter, so you can keep it clean and use it again and again.
What We Like:
- It makes your truck more powerful and improves throttle response, so it feels more alive when you drive.
- It uses cooler air, which is denser and helps your engine get more oxygen for better power.
- It includes a premium, reusable air filter that you can clean and use multiple times, saving you money in the long run.
- Installation is straightforward and can be done at home, and Rough Country offers support if you need it.
- Rough Country backs this product with a Limited Lifetime Replacement Warranty, giving you peace of mind.
What Could Be Improved:
- While installation is described as easy, some users might find it challenging without prior experience.
- The specific horsepower gains can vary depending on driving conditions and other modifications.
This Rough Country Cold Air Intake is a solid upgrade for your heavy-duty truck. It offers tangible performance benefits and is supported by a strong warranty.
Upgrade Your Duramax: The L5P Cold Air Intake Buying Guide
If you own a Duramax L5P truck, you know it’s a powerful machine. Want to make it even better? A cold air intake is a great way to do it. This guide will help you choose the best one for your truck.
What is a Cold Air Intake?
A cold air intake replaces your truck’s stock air filter and intake tube. It lets your engine breathe in cooler, denser air. Cooler air has more oxygen. More oxygen means your engine can burn fuel more efficiently. This can lead to more power and better fuel economy.
Key Features to Look For
When you shop for an L5P cold air intake, keep these features in mind:
- Airflow: A good intake will let more air into your engine. Look for larger diameter tubing and a high-flow air filter.
- Filtration: The filter is super important. It keeps dirt and debris out of your engine. You want a filter that is easy to clean and reuse. Some filters are oiled, while others are dry. Both can work well.
- Heat Shielding: Your engine makes heat. This heat can warm up the air going into your engine. A good heat shield blocks this engine heat. This helps keep the air cool.
- Ease of Installation: Most intakes are designed for easy bolt-on installation. Check reviews to see if people found it easy to install.
Important Materials
The materials used make a big difference in quality:
- Tubing: Look for smooth, mandrel-bent tubing. This means the tubing has smooth curves. This helps air flow without getting blocked. Materials like high-density polyethylene (HDPE) or aluminum are common. HDPE is often good at insulating against heat.
- Air Filter: High-quality synthetic media or cotton gauze are common. Synthetic filters often offer great filtration with less restriction.
- Heat Shield: Durable plastic or powder-coated metal are typical. They should fit snugly to prevent hot air from getting in.
Factors That Improve or Reduce Quality
Several things can make an intake better or worse:
- Improve Quality:
- Smooth Interior: A smooth inside surface on the intake tube helps air move faster.
- Secure Fitment: Parts that fit perfectly prevent air leaks. Air leaks let in hot air.
- Good Sealing: The heat shield should seal well against the hood. This stops hot engine bay air from entering.
- Reduce Quality:
- Rough Interior: Bumps or rough spots inside the tube can slow down airflow.
- Poor Fitment: Gaps or parts that don’t align can cause problems.
- Flimsy Materials: Cheap plastic or thin metal can break or warp.
User Experience and Use Cases
Many L5P owners report positive experiences with cold air intakes. They often notice a slight increase in horsepower and torque. Some also hear a more aggressive intake sound when they accelerate. This is a popular upgrade for people who tow heavy loads or want to get the most out of their truck. It’s a straightforward way to improve performance.
Frequently Asked Questions (FAQ) About L5P Cold Air Intakes
Q: Will a cold air intake void my truck’s warranty?
A: Generally, no. As long as the intake is installed correctly and doesn’t cause any issues, it shouldn’t void your warranty. However, it’s always a good idea to check with your dealer.
Q: Do I need to tune my truck after installing a cold air intake?
A: For most L5P cold air intakes, a tune is not required. The engine’s computer can adjust to the increased airflow. However, some performance-oriented intakes might work best with a tune.
Q: How often do I need to clean or replace the air filter?
A: This depends on your driving conditions. If you drive in dusty areas, you’ll need to clean it more often. Most reusable filters can be cleaned and re-oiled every 20,000 to 30,000 miles.
Q: Will a cold air intake improve my fuel economy?
A: Many users report slight improvements in fuel economy. When the engine breathes better, it can burn fuel more efficiently.
Q: Can I install a cold air intake myself?
A: Yes, most cold air intakes are designed for DIY installation. They usually come with all the necessary hardware and instructions.
Q: What kind of sound can I expect from a cold air intake?
A: You’ll likely hear a more noticeable and satisfying intake sound when you accelerate. It’s often described as a deeper growl.
Q: Are there different types of filters (oiled vs. dry)?
A: Yes, there are oiled filters and dry filters. Oiled filters are often thought to provide a bit more airflow. Dry filters are usually easier to maintain and don’t require oil.
Q: Will a cold air intake help my truck perform better when towing?
A: Yes, improved airflow can help your engine work more efficiently, which can be beneficial when towing heavy loads.
Q: How much horsepower gain can I expect?
A: Gains vary depending on the specific intake and your truck. Most L5P intakes offer a modest horsepower and torque increase, typically in the range of 10-20 horsepower.
Q: What is the typical cost of an L5P cold air intake?
A: Prices can range from $200 to $500 or more, depending on the brand and features.
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.
Hi, I’m Sean Kernan, the voice behind esteeringwheel.com.. With a passion for all things automotive, I created this platform to share my journey, insights, and expertise about cars. From the latest tech to timeless driving tips, my goal is to help fellow enthusiasts and everyday drivers navigate the fascinating world of automobiles. Welcome to my corner of the road—let’s steer toward knowledge and discovery together!