• Cold Air Intake for BMW 318i 318iS 318ti Z3 (1996-1999) 1.9L Engine
  • Cold Air Intake for BMW 318i 318iS 318ti Z3 (1996-1999) 1.9L Engine
  • Cold Air Intake for BMW 318i 318iS 318ti Z3 (1996-1999) 1.9L Engine Default Title

Cold Air Intake for BMW 318i 318iS 318ti Z3 (1996-1999) 1.9L Engine

$99.99
$99.99
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Boost Your BMW E36/Z3 M44B19: Unleash True Throttle Response with Our Performance Cold Air Intake

Who It’s For: Designed specifically for 1996-1999 BMW 318i, 318is, 318ti, and Z3 owners running the venerable M44B19 engine. If you’re tired of sluggish throttle response and want to inject some real Bavarian spirit back into your 1.9L, this is your upgrade.

The Problem: Let’s be real, BMW engineered the stock M44B19 intake for quiet operation, not performance. That restrictive factory airbox, with all its baffles and convoluted piping, chokes your engine, especially when you push it. I’ve seen countless M44s come in feeling flat, and a major culprit is always that factory bottleneck limiting how freely the engine can breathe. You’re leaving horsepower and torque on the table, and that instant “go” feeling you expect from a BMW is dulled.

The Solution: We engineered this cold air intake system to correct the factory design flaws of the M44B19, delivering a genuine performance upgrade. By replacing the stock setup with a high-flow, T304 lightweight aluminum induction path, you’re no longer restricted. This system pulls in a larger volume of cooler, denser, oxygen-rich air directly to your engine, optimizing combustion. The result? Sharper throttle response, a noticeable bump in power, and a much more engaging driving experience across the entire RPM range.

Why This is the Ultimate Upgrade

  • Enhanced Performance: Experience a noticeable gain of up to 10% in both horsepower and torque. The M44B19 will feel more responsive, pulling harder through the revs, especially when you’re driving spiritedly.
  • Superior Durability & Heat Management: Constructed from high-grade T304 lightweight aluminum, this intake pipe isn’t just for show. It’s built to resist heat soak far better than plastic, ensuring that your engine is consistently drawing in cooler air, even during prolonged, aggressive driving.
  • Effortless Installation & Fitment: Designed as a straightforward bolt-on solution, this kit comes complete with all necessary couplers, clamps, and hardware. It’s precision-engineered to integrate seamlessly with both Automatic and Manual transmission models of your E36 318i/is/ti or Z3 1.9L, requiring no modifications.
  • Aggressive Induction Sound: Beyond the power gains, you’ll get an exhilarating, sportier induction note that truly complements the character of your M44B19, making every acceleration more exciting.

Technical Specifications

Fitment 1996-1999 BMW 318i, 318is, 318ti, Z3
Engine Family M44B19 (1.9L 4-Cylinder)
Factory Ratings 138 HP & 133 lb-ft
Part Numbers N/A

Compatibility & OEM Reference

Fits the Following Vehicles:

  • 1996 BMW 318i (E36) 1.9L 4-Cyl
  • 1997 BMW 318i (E36) 1.9L 4-Cyl
  • 1998 BMW 318i (E36) 1.9L 4-Cyl
  • 1999 BMW 318i (E36) 1.9L 4-Cyl
  • 1996 BMW 318is (E36) 1.9L 4-Cyl
  • 1997 BMW 318is (E36) 1.9L 4-Cyl
  • 1998 BMW 318is (E36) 1.9L 4-Cyl
  • 1999 BMW 318is (E36) 1.9L 4-Cyl
  • 1996 BMW 318ti (E36) 1.9L 4-Cyl
  • 1997 BMW 318ti (E36) 1.9L 4-Cyl
  • 1998 BMW 318ti (E36) 1.9L 4-Cyl
  • 1999 BMW 318ti (E36) 1.9L 4-Cyl
  • 1996 BMW Z3 Roadster 1.9L 4-Cyl
  • 1997 BMW Z3 Roadster 1.9L 4-Cyl
  • 1998 BMW Z3 Roadster 1.9L 4-Cyl
  • 1999 BMW Z3 Roadster 1.9L 4-Cyl

Interchange Part Numbers:

No specific OEM or interchange part numbers were provided with the product data.

The Performance Promise

Buy with confidence. Backed by real automotive experts and fast shipping.

Engine Safety Rating
Difficulty 

Fitment

Make

BMW

Engine Size
  • 1.9L

Year
  • 1996
  • 1997
  • 1998
  • 1999

Installation & Tools

The Wrench Time

  • Estimated Time: 45-60 Minutes
  • Difficulty: 3/10 - A straightforward bolt-on job, but requires patience when dealing with aging German plastics and vacuum lines.

Tools You Will Need

  • 10mm Socket and ratchet with a 6-inch extension
  • 10mm Wrench
  • 8mm Nut Driver (or Flathead Screwdriver) for hose clamps
  • Needle-Nose Pliers
  • 4mm Allen Key (typically required for aftermarket heat shield hardware)
Mechanic’s Pro Tip (The "Gotcha"):
The E36 and Z3 M44 engines are notorious for brittle, 25-year-old under-hood plastics. The factory rubber intake boot is almost certainly dry-rotted and heat-cycled. When pulling the CCV (Crankcase Ventilation) and ICV (Idle Control Valve) vacuum lines off the factory intake tube, DO NOT yank them. Twist them gently with pliers to break the seal first. Yanking will snap the brittle plastic nipples or tear the hoses, turning a quick driveway job into a week-long wait for replacement BMW parts.

Phase 1: Removing the Factory Part from your 1996-1999 BMW Z3 3 Series 1.9L

  1. Disconnect the Battery: Always start by disconnecting the negative battery terminal using a 10mm wrench to prevent check engine lights and protect the ECU.
  2. Unplug the MAF Sensor: Locate the Mass Air Flow (MAF) sensor just behind the factory airbox. Depress the metal wire clip or plastic locking tab, and gently pull the wiring harness free. Tuck the wiring aside.
  3. Loosen the Intake Boot Clamps: Using an 8mm nut driver or flathead screwdriver, loosen the hose clamps securing the factory rubber ribbed boot to both the throttle body and the MAF sensor.
  4. Detach the Vacuum Lines: Look underneath the factory rubber intake boot. You will find vacuum lines for the idle control and breather system. Use needle-nose pliers to compress any factory tension clamps, and carefully twist and pull the hoses off the boot nipples.
  5. Remove the Factory Airbox: Grab your 10mm socket and extension to remove the two mounting bolts securing the factory airbox to the driver-side inner fender. Once unbolted, lift the entire airbox, MAF sensor, and intake boot assembly out of the engine bay as one unit.
  6. Separate the MAF Sensor: Unclip or unbolt the MAF sensor from the factory airbox. Handle this sensor with extreme care—the hot wire inside is highly sensitive. Dropping it or hitting it with tools will require a costly replacement.

Phase 2: Installing the Cold Air Intake

  1. Assemble and Mount the Heat Shield: Put together your new aftermarket heat shield using the supplied hardware and a 4mm Allen key. Drop the assembly into the factory airbox location and secure it to the chassis using the original 10mm socket and factory bolts.
  2. Transfer the MAF Sensor: Slide the factory MAF sensor into the new silicone couplers provided with the kit. CRITICAL: Ensure the directional airflow arrow on the side of the MAF housing is pointing TOWARDS the engine throttle body. Secure it loosely with the provided hose clamps.
  3. Install the New Intake Tube: Maneuver the aftermarket cold air intake pipe into place. Slip the throttle body side into position and firmly tighten the clamp using an 8mm nut driver. Adjust the MAF side coupler to connect to the new pipe and tighten down those clamps as well.
  4. Reconnect the Vacuum Lines: Press your factory ICV and CCV breather hoses onto the CNC-machined nipples on the new intake pipe. Ensure they are seated deeply to prevent any unmetered air leaks, which will cause a rough idle on the M44 engine.
  5. Mount the Filter and Reconnect Wiring: Slide the new high-flow cone filter onto the end of the intake assembly (inside the heat shield) and lock it down with an 8mm nut driver. Plug the MAF sensor wiring harness back into the sensor until you hear a positive click.
  6. Initial Startup Protocol: Reconnect the negative battery terminal with your 10mm wrench. Start the vehicle, but do not touch the gas pedal for at least 20 seconds. Allow the ECU to read the new airflow dynamics and adapt its idle control parameters automatically.

Disclaimer: This is a general guide provided for the 1996-1999 BMW Z3 3 Series 1.9L. Always refer to your factory service manual for exact torque specifications and safety procedures.

Warranty

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Cold Air Intake for BMW 318i 318iS 318ti Z3 (1996-1999) 1.9L Engine

$99.99