Performance Upgrades for CLA45 AMG GLA45 (M133)

CLA45 / GLA45 / A45 AMG (M133) — Real Performance, Zero Gimmicks

The M133 is a monster of a 2.0T engine — but heat-soak, airflow limits, and OEM boost control leave power on the table. Upgrade cooling, boost control, airflow, and tuning to unlock consistent, repeatable performance.

  • Fitment Support Included
  • Ships Within 1 Business Day
  • 1-Year Replacement Warranty

🔥 Best Sellers

Best bang for the buck upgrades for M133 2.0 4 cyl turbo — tuning, exhaust flow, cooling, and boost control.

Stage 1 / Stage 2 M133 ECU Tune

Unlock full boost, torque, and throttle response.

View Tune

Catless M133 Downpipe

Max flow & spool. Tune required.

View Downpipe

High-Performance Heat Exchanger

Fix heat soak. Stable temps on repeated pulls.

View Heat Exchanger

M133 Turbo Blanket

Lower bay temps. Faster spool.

View Turbo Blanket

Upgraded Diverter Valve – M133

Prevents boost leak & stabilizes pressure. Recirculating (not a blow-off).

View Diverter Valve

What’s in This M133 Collection

  • Dual-Pass Intercooler — lower IAT + faster recovery.
  • Front-Mount Heat Exchanger — the primary cooling upgrade.
  • Cross-Platform AMG Heat Exchanger — CLA45/GLA45 fitment confirmed.
  • 4" Intake Kit w/ K&N — deep induction sound + improved flow.
  • K&N Drop-In Filter — simple, effective airflow bump.
  • M133 Catless Downpipe — max flow; tune required.
  • Upgraded Diverter Valve — proper boost control for tuned setups.

Diverter Valve vs Blow-Off Valve

Many owners search for a “blow off valve,” but the M133 uses a recirculating diverter valve, not an atmospheric BOV. Upgrading the DV is the correct way to maintain fueling stability and prevent boost loss on tuned setups.

Recommended Upgrade Order

  1. Cooling: Heat Exchanger → Intercooler
  2. ECU Tune: Unlock full M133 potential
  3. Airflow: Intake or Drop-In
  4. Downpipe: Requires tune
  5. Diverter Valve: Stabilize boost