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M133 Air Intake System
Purchase M133 Air Intake System
  • SKU: 01-133-01502-6

    M133 Air Intake System

  • $349.00 $349.00

  • Prop 65 warning
    Warning

    This product can expose you to chemicals including carbon black, silica - crystalline, formaldehyde, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Manufacturer Weistec
Street legal in all the US States No
Engine Family M133
UPC 810089560063
year make model trim engine
2019 Mercedes-Benz GLA45 AMG Base (X156) Turbocharged 2L I4 (M133)
2018 Mercedes-Benz GLA45 AMG Base (X156) Turbocharged 2L I4 (M133)
2017 Mercedes-Benz GLA45 AMG Base (X156) Turbocharged 2L I4 (M133)
2016 Mercedes-Benz GLA45 AMG Base (X156) Turbocharged 2L I4 (M133)
2015 Mercedes-Benz GLA45 AMG Base (X156) Turbocharged 2L I4 (M133)
2014 Mercedes-Benz GLA45 AMG Base (X156) Turbocharged 2L I4 (M133)
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Product Description



The Weistec M133 Air Intake System is designed to remove as much restriction from the intake system as possible, while maintaining the benefits of the factory air box which has a large cold air inlet as well as integrated mounting for the vehicle's ECU.  The inner diameter of the filter adapter, at 5 inches, is nearly double that of the stock filter adapter providing significantly improved airflow.  The Weistec system also has a very subtle appearance when installed, appearing stock to the untrained eye.  Substantial gains are delivered throughout the powerband resulting in noticeably improved performance and acceleration in comparison to the factory air intake.

For maximum results, the combination of our Weistec ECU flash is recommended.


Key Features:


  • +5 to 15 Horsepower

  • +5 to 15 lb-ft Torque

  • Improved Turbo Response

  • Increased Flow Area

  • Simple Bolt-On Installation

  • Subtle Appearance

  • Amplifies the performance of your Weistec ECU Tune

  • All Hardware Included