Hey guys! Thinking about boosting your BMW 335i E92 N55's performance? One of the most popular and effective upgrades you can make is installing a cold air intake. In this guide, we'll dive deep into everything you need to know about cold air intakes for your N55-powered E92, covering the benefits, installation tips, and the best options on the market. Let's get started!

Why Upgrade to a Cold Air Intake?

Cold air intakes (CAI) are designed to improve your engine's performance by increasing the amount of cool air flowing into the engine. The N55 engine in your BMW 335i E92 is a beast, but it can always benefit from breathing easier. Here’s why a cold air intake is a worthwhile upgrade:

• Increased Horsepower and Torque: By providing a larger volume of cooler air, the engine can produce more power. Cooler air is denser, containing more oxygen per unit volume, which leads to a more efficient combustion process. This results in noticeable gains in both horsepower and torque, especially in the mid to high RPM range. Expect to see gains of around 10-15 horsepower with a good quality intake.
• Improved Throttle Response: A cold air intake can sharpen throttle response, making your car feel more eager and responsive to your inputs. The improved airflow allows the engine to react more quickly to changes in throttle position, providing a more engaging and dynamic driving experience. This is particularly noticeable during acceleration and when navigating twisty roads.
• Enhanced Engine Sound: Let's be honest, who doesn't love a more aggressive engine note? A cold air intake replaces the factory airbox, which often muffles the sound of the engine. With an aftermarket intake, you'll hear the turbo spooling and the engine roaring, adding to the overall driving excitement. The sound improvement alone is often worth the upgrade for many enthusiasts.
• Better Fuel Efficiency (Potentially): While not the primary reason for installing a cold air intake, some users report a slight improvement in fuel efficiency. This is because the engine is working more efficiently, requiring less fuel to produce the same amount of power. However, this benefit largely depends on driving habits and the specific intake design.
• Aesthetic Appeal: Many cold air intakes are designed to look good under the hood. They often feature polished metal tubes and high-quality air filters, adding a touch of visual flair to your engine bay. If you enjoy showing off your car at meets or simply appreciate a clean and well-maintained engine compartment, a cold air intake can be a great addition.

Overall, upgrading to a cold air intake is a fantastic way to unlock more potential from your BMW 335i E92 N55. The combination of increased power, improved throttle response, enhanced sound, and aesthetic appeal makes it a popular choice among BMW enthusiasts.

Choosing the Right Cold Air Intake for Your N55

Okay, so you're sold on the idea of a cold air intake. But with so many options on the market, how do you choose the right one for your BMW 335i E92 N55? Here’s what you need to consider:

• Filter Type: The air filter is the heart of any cold air intake. You'll typically find two main types: oiled and dry filters.
  • Oiled filters (like those from K&N) offer excellent filtration and can be cleaned and re-oiled for extended use. However, over-oiling can damage your mass airflow sensor (MAF), so be careful!
  • Dry filters are easier to maintain, as they simply need to be cleaned with compressed air or a vacuum. They might not filter quite as well as oiled filters, but they're a safer bet for your MAF sensor.
• Intake Material: Most intakes are made from either aluminum or plastic.
  • Aluminum intakes look great, dissipate heat well, and are very durable. However, they can be more expensive.
  • Plastic intakes are more affordable and lightweight, but they might not be as durable or effective at dissipating heat.
• Intake Design: The design of the intake tube can affect airflow and performance. Look for smooth, mandrel-bent tubes that minimize restrictions and turbulence. Some intakes also feature heat shields to further reduce the intake of hot engine bay air.
• Brand Reputation: Stick with reputable brands known for quality and performance. Some popular options for the N55 engine include:
  • aFe Power: Known for their high-quality filters and durable construction.
  • Injen: Offers a range of intakes with innovative designs and good performance.
  • Burger Motorsports (BMS): Popular for their ease of installation and noticeable performance gains.
  • K&N: A well-known brand with a long history of producing high-quality air filters and intake systems.
• Price: Cold air intakes can range in price from a couple hundred dollars to over $500. Set a budget and find an intake that offers the best value for your money. Remember that the most expensive option isn't always the best – focus on quality, performance, and reliability.
• Ease of Installation: Consider how easy the intake is to install. Some intakes are designed as direct bolt-on replacements, while others may require some modification. If you're not comfortable working on your car, you might want to choose an intake that's easy to install or have it professionally installed.

By carefully considering these factors, you can choose a cold air intake that perfectly matches your needs and preferences, ensuring optimal performance and satisfaction with your upgrade.

Top Cold Air Intake Options for the BMW 335i E92 N55

Alright, let's check out some specific cold air intake options that are popular among BMW 335i E92 N55 owners:

1. aFe Power Magnum FORCE Stage-2 Cold Air Intake System: This intake features a high-flow air filter, a heat shield, and a mandrel-bent aluminum tube. It's known for its excellent filtration, durability, and performance gains.
2. Injen SP Series Cold Air Intake System: The Injen SP Series intake is designed to maximize airflow and improve throttle response. It features a patented MR Technology tuning process and a durable aluminum intake tube.
3. Burger Motorsports (BMS) Performance Intake: The BMS intake is a popular choice for its ease of installation and noticeable performance gains. It features a simple, yet effective design that improves airflow and enhances engine sound.
4. K&N 57i Series Induction Kit: The K&N 57i Series intake is a classic choice for BMW enthusiasts. It features a high-flow air filter and a durable intake tube, providing improved performance and engine sound.

Each of these options offers a unique combination of features and benefits, so be sure to research each one thoroughly to determine which is the best fit for your needs and budget.

Installation Tips and Tricks

So, you've got your new cold air intake. Time to install it! Here are some tips to make the process smoother:

• Read the Instructions: This might seem obvious, but always read the installation instructions carefully before you start. Each intake is different, and the instructions will provide specific guidance for your particular model.
• Gather Your Tools: Make sure you have all the necessary tools before you begin. This typically includes screwdrivers, sockets, wrenches, and pliers. Having the right tools on hand will save you time and frustration.
• Disconnect the Battery: Before you start working on your car, disconnect the negative battery terminal. This will prevent any electrical accidents and protect your car's electrical system.
• Take Your Time: Don't rush the installation process. Take your time and double-check your work to ensure everything is installed correctly. Rushing can lead to mistakes and potential damage to your car.
• Clean the MAF Sensor: While you have the intake system disassembled, take the opportunity to clean your mass airflow (MAF) sensor. A dirty MAF sensor can cause poor performance and fuel economy. Use a MAF sensor cleaner and follow the instructions carefully.
• Properly Tighten Clamps: Ensure all clamps are properly tightened to prevent air leaks. Air leaks can reduce performance and cause engine problems. Use a torque wrench to tighten the clamps to the manufacturer's specifications.
• Double-Check Everything: Once you've completed the installation, double-check all connections and make sure everything is secure. Start the engine and listen for any unusual noises or leaks.

By following these tips, you can ensure a successful installation and enjoy the benefits of your new cold air intake.

Maintaining Your Cold Air Intake

To keep your cold air intake performing at its best, regular maintenance is key. Here’s what you need to do:

• Clean the Air Filter: Depending on the type of filter you have (oiled or dry), you'll need to clean it periodically. Oiled filters should be cleaned and re-oiled every 20,000-30,000 miles, while dry filters can be cleaned more frequently with compressed air or a vacuum.
• Inspect the Intake Tubes: Regularly inspect the intake tubes for any cracks, leaks, or damage. Replace any damaged components to maintain optimal performance.
• Check the Clamps: Ensure all clamps are tight and secure. Loose clamps can cause air leaks, which can reduce performance and cause engine problems.
• Monitor Performance: Pay attention to your car's performance and listen for any unusual noises. If you notice any issues, such as reduced power or poor fuel economy, inspect your cold air intake system for any problems.

By following these maintenance tips, you can keep your cold air intake in top condition and enjoy its benefits for years to come.

Conclusion

So there you have it – a comprehensive guide to cold air intakes for your BMW 335i E92 N55! Upgrading to a cold air intake is a fantastic way to improve your car's performance, enhance its sound, and add a touch of visual flair to your engine bay. Just remember to choose the right intake for your needs, follow the installation instructions carefully, and maintain it properly to keep it performing at its best. Happy modding!