Mercedes-AMG A45 / CLA45 / GLA45 M133: Turn Your Hot Hatch Into a Street Weapon With the Breeze Cold Air Intake

When Mercedes-AMG launched the M133 engine in the A45, CLA45, and GLA45 AMG, it immediately earned a reputation as one of the most exciting four-cylinder turbo engines ever fitted to a production car. With proper tuning support, the M133 responds aggressively to modifications. The Breeze Performance M133 Cold Air Intake System for the A45 / CLA45 / GLA45 AMG (2014–2019) is the first mod every M133 owner should consider.

What Makes the M133 Such a Good Platform

The M133 is a 2.0-litre turbocharged four-cylinder that produces serious power from the factory. It's hand-built in AMG's Affalterbach factory and uses a high-flow turbocharger that responds very well to increased airflow and ECU tuning. The platform has a strong aftermarket and a proven history of holding big power reliably.

But the factory airbox is a limiting factor. It was designed to meet European noise standards, which means it's deliberately muffled and restricted. Replacing it with the Breeze M133 Cold Air Intake is the logical first step in any M133 build.

What the Breeze M133 Cold Air Intake Delivers

• High-flow cold air routing: The intake draws air from away from the engine's heat sources, keeping intake temperatures lower under sustained load.
• Large cone filter: More filter surface area means less restriction and better flow than the factory paper element inside the OEM airbox.
• Direct fitment for M133 applications: Engineered to fit the A45, CLA45, and GLA45 AMG without cutting or fabrication.
• Better turbo spool: Reduced intake restriction allows the M133's turbo to build boost with less effort.
• Aggressive intake sound: The M133 turbo sounds incredible with an unrestricted intake — this system lets you hear it clearly.

Why Cold Air Matters on the M133

The A45 / CLA45 / GLA45 engine bays are compact and run hot, especially under hard driving. Stock intake air temperatures can rise significantly under track or spirited driving conditions, which causes the ECU to pull timing and reduce power.

Cold air intake routing addresses this directly by sourcing air from outside the hot engine bay environment. The result is more consistent power delivery and better resistance to heat soak — exactly what you need if you're using your AMG the way it was intended to be driven.

Perfect Companion to an ECU Tune

The M133 responds extremely well to ECU remapping. Stage 1 alone transforms the character of these cars. When combined with the Breeze M133 Cold Air Intake, the tune has better conditions to work with — lower IATs, reduced restriction, and more consistent airflow into the turbo.

For Stage 2 builds targeting larger numbers, the Breeze cold air intake is a required supporting mod alongside a downpipe and intercooler upgrade.

Compatible Vehicles

• Mercedes-AMG A45 (W176) 2014–2019
• Mercedes-AMG CLA45 (C117) 2014–2019
• Mercedes-AMG GLA45 (X156) 2014–2019

Two in Stock — Ready to Ship

The Breeze Performance M133 Cold Air Intake is in stock with 2 units available. If you own any of the M133 AMG hot hatches and crossovers from this generation, this intake is the most impactful first modification you can make.

Order the Breeze Performance M133 Cold Air Intake now and unlock what your AMG is truly capable of.