Kleemann ECU Upgrade Tuning Box A45 CLA45 GLA45 AMG
One of the highest specific output spark ignition engines ever produced for a street car (181hp per liter of displacement), the M133 engine has few equals, but there is still room for improvement.
Utilizing proprietary electronic circuitry, the K-Box elevates the power output of the 2 liter turbo engine to an eye watering 420 HP and 540Nm (398 lb-ft). Installation is straight forward, requires no special tools and takes under 20 minutes.
User adjustable power trim settings allow the individual to tailor power outputs to their personal tastes.
No permanent modifications are required for installation, switching back to OE takes a matter of minutes.
45-K1: K-Box. Up to 420 HP and 540 Nm (398 lb-ft) of torque.
- Special order
Earn Rewards
On all Online Orders.
Next Day Delivery
On orders to UK Mainland destinations*
14 Days Return
Returns within 14 days for an exchange or refund.
We are not affiliated, associated, or in any way officially connected with Mercedes, BMW, VW, Audi, Porsche, Ferrari, Lamborghini, Bentley, Range Rover and Aston Martin, or any companies and/or brands mentioned on our website or their subsidiaries or affiliates.
The names of these companies, as well as related names, marks, emblems, brands, and images, are registered trademarks of their respective owners.