Performance Upgrades for CLA45 AMG GLA45 (M133)

CLA45 / GLA45 AMG (M133) — Real Gains, No Gimmicks

Stock, these cars punch above their weight—but they heat-soak fast and leave power on the table. Fix the heat, free the flow, and the car feels the way an AMG should: sharp throttle, stronger mid-range, repeat pulls without fade. This collection is the proven path—parts we run, install, and stand behind.

  • Fitment help included
  • Ships within 1 business day
  • 1-year replacement warranty

What’s in this collection

  • M133 Dual-Pass Intercooler — lower IATs, faster recovery.
  • Front-Mount Heat Exchanger — primary cooling upgrade.
  • AMG Heat Exchanger (cross-platform) — verify line routing/dimensions for CLA45/GLA45.
  • 4" Intake Kit w/ K&N — large ID, better response.
  • K&N Drop-In Filter — quick, reliable airflow bump.
  • M133 Catless Stainless Downpipe — max flow; tune required (track/competition where applicable).

Recommended order

  1. Cooling first: heat exchanger → intercooler.
  2. Airflow next: 4" intake or drop-in.
  3. Then downpipe with proper ECU calibration.

CLA45 M133 intercooler, CLA45 heat exchanger, CLA45 catless downpipe, CLA45 4 inch intake, CLA45 K&N filter, GLA45 intercooler, GLA45 heat exchanger, GLA45 downpipe, GLA45 intake, 2014 2015 2016 2017 2018 2019