Mercedes-Benz CLA45 Catless Downpipe | YPG Motorsport GLA45 Should I get an ECU

Should I get an ECU tune with downpipes

What is the difference between Autotuner Master and Slave

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Mercedes-Benz CLA45 Catless Downpipe | YPG Motorsport GLA45 Should I get an ECUMercedes Benz CLA45 AMG Catless Downpipe M133 2. 0L Turbo YPG Motorsport catless downpipe for the Mercedes AMG CLA45 replaces the restrictive factory catalytic converter on the M133 2. 0L turbocharged four cylinder with a mandrel bent stainless steel pipe. The CLA45 shares its entire powertrain with the A45 the same M133 engine, the same tuning potential, and the same modification path. Removing the factory cat delivers faster turbo spool, sharper