M133 Intercooler Upgrade – CLA45 / GLA45 AMG Performance Core

Dual-Pass Design | 30% Larger | >10% Lower IATs | Direct Bolt-On Fit

Unlock the full potential of your M133 AMG engine with this upgraded front mount intercooler. Designed specifically for CLA45 and GLA45 AMG models, this dual-pass core offers a significant cooling advantage over the restrictive factory unit—delivering more consistent power and lower intake temps in real-world driving.

🧊 More airflow. Lower heat. More power—more of the time.

❄️ Why Intercooler Upgrades Matter for Turbocharged AMG Engines

If you're driving a CLA45 or GLA45 AMG with the turbocharged M133 engine, an intercooler upgrade isn’t just a performance mod—it’s a heat management necessity. Under boost, your turbo compresses and heats the intake air. That air must be cooled before entering the engine to prevent detonation and keep timing aggressive. That’s the job of the intercooler.

Unfortunately, the OEM Mercedes intercooler struggles to keep intake temps low during repeated pulls, warm weather driving, or after ECU tuning. This leads to heat soak, which forces the ECU to reduce timing and power to protect the motor. That’s why so many performance owners seek a CLA45 AMG intercooler upgrade—to maintain consistent power and eliminate the sag in acceleration once things heat up.

By replacing your factory intercooler with this high-performance dual-pass core, you gain:

• Lower intake air temperatures (IATs) for more aggressive timing and denser air charge
• Improved high-RPM consistency—ideal for tuned or stock AMG builds
• Reduced turbo lag thanks to smoother airflow and less pressure drop
• Better protection against heat soak during track use or spirited street driving

Whether you're chasing dyno-proven gains or just want your car to feel strong on every pull, this CLA45 / GLA45 intercooler upgrade kit gives you the foundation for reliable, repeatable performance—without compromising drivability.

🔧 Key Performance Features

• Dual-Pass Core: Maximizes cooling efficiency through increased exposure time
• Over 30% Larger Than OEM: Substantially more surface area and flow volume
• Reduces Intake Temps by 10% or More: Protects engine and unlocks power potential
• Improved Airflow: Lower restriction = quicker throttle response and better boost recovery
• Increased Fluid Volume: Helps manage temps under extended boost and heat load

💥 Real-World Benefits

• Stronger, more repeatable pulls in hot weather or repeated acceleration
• Prevents power loss after ECU tuning and higher boost levels
• Perfect upgrade for any stage 1 or stage 2 tuned M133 AMG
• Streetable and track-tested—no compromise in drivability

✅ Fitment

• Mercedes CLA45 AMG (C117)
• Mercedes GLA45 AMG (X156)

Fits M133 engine only. Not compatible with M139 45S AMG models.