🔧 BRZ - Engine Air Filter Replacement

Replacing the engine air filter helps your BRZ breathe clean air, which supports good performance and fuel economy. This is a quick job: you’ll open the air box, swap the filter, and close everything back up.

Difficulty Level: Beginner | Estimated Time: 0.2-0.5 hours

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⚠️ Safety & Precautions

• 🛑 Turn the engine off and let it cool for 10–15 minutes before working.
• 🧤 Keep fingers clear of the radiator fans and belts (they can move unexpectedly if the car is hot).
• 🔒 No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Flashlight
• Small flathead screwdriver

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine air filter - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and shut the engine off.
• Open the hood and secure it with the hood prop rod.
• Have your new filter unwrapped and ready to install.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Locate the air filter box

• Use a flashlight to look at the black plastic air box in the engine bay (it’s connected to the intake tube).

Step 2: Unclip the air box lid

• Use your hands to flip open the metal retaining clips around the air box lid.
• If a clip is stubborn, use a small flathead screwdriver to gently help pry it open. Don’t force the plastic.

Step 3: Open the air box

• Use your hands to lift the air box lid just enough to access the filter.
• Do not yank on any hoses or wiring—lift slowly and smoothly.

Step 4: Remove the old filter

• Use nitrile gloves and pull the old air filter straight out.
• Use the flashlight to check for leaves/dust inside the lower air box.

Step 5: Install the new filter

• Use the flashlight to confirm the filter sits flat in the lower air box.
• Make sure the rubber sealing edge is fully seated all the way around (no corners folded).

Step 6: Close and secure the air box

• Use your hands to lower the lid back into position.
• Use your hands to snap all retaining clips closed. You should feel them lock in place.

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✅ After Repair

• Start the engine and let it idle for 10–20 seconds. Listen for any hissing or air-leak sounds near the air box.
• Visually re-check that all clips are fully latched and the lid is sitting evenly.
• If the engine runs rough right after, shut it off and re-seat the filter and lid.

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💰 DIY vs Shop Cost

Shop Cost: $40-$90 (parts + labor)

DIY Cost: $15-$30 (parts only)

You Save: $25-$60 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.5 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.