If you're looking to give your 2006-2011 Honda Civic Si a serious boost, the HPS Blue cold air intake kit is definitely worth your attention. This isn't just another aftermarket part; it’s designed with performance in mind. By relocating the HPS Performance Air Filter outside the engine compartment, it pulls in cooler air, which is a game changer for your engine. Cooler air means more oxygen, and that translates to a more explosive combustion process. We’re talking about some impressive dyno-proven gains here—+8.9 Whp and +7.1 Ft/lbs of torque, plus a noticeable improvement in throttle response.

Installation is straightforward, thanks to the included manual that’s packed with clear pictures and step-by-step instructions. You might need to remove the front bumper to get everything in place, but trust me, it’s worth the effort. Plus, HPS has thrown in a silicone coolant re-route hose to keep the intake pipe from rubbing against the stock coolant hose, which is a nice touch.

The lightweight mandrel-bent aluminum alloy tubing replaces your stock air box, optimizing airflow while ensuring excellent heat dissipation. And let’s not forget about the HPS signature reinforced silicone hoses and industrial-grade stainless steel T-bolt clamps—these components are built to last, even under the most demanding driving conditions.

What’s more, the HPS Performance Air Filters are made right here in the USA. They’re designed for high performance, delivering great filtration without choking airflow. Plus, they’re washable and reusable, so you can keep them in top shape without constantly replacing them. Just a heads up, though: this kit isn’t CARB compliant, so check your local regulations if that’s a concern.

In a nutshell, if you want to enhance your Civic Si’s performance without diving into complex tuning, this cold air intake kit is a solid choice. It’s all about getting the most out of your ride while keeping things simple. Features:

• Dyno-proven performance gains: +8.9 Whp horsepower and +7.1 Ft/lbs torque, with improved throttle response.
• No tuning required after installation—just bolt it on and go.
• Lightweight mandrel-bent aluminum alloy piping for optimized airflow.
• Includes reinforced silicone hoses and durable stainless steel T-bolt clamps.
• Comes with a detailed installation manual to guide you through the process.
• Includes a silicone coolant re-route hose and air straightener to minimize CEL lights.

• Product Type: Performance Air Intake
• Series: 837 Series
• Color: Blue
• Vehicle Type: Sport Compact
• Tubing Material: Aluminum
• Air Filter Type: Cone
• Replacement Air Filter SKU: HPS-4275

• Honda Civic Si 2.0L 2006-2011

So, if you're ready to unleash some extra power and make your Civic Si a bit more thrilling to drive, the HPS Performance Cold Air Intake Kit is the way to go. It's all about performance and reliability, wrapped up in a package that's easy to install and maintain.