RENNtech Downpipe M133 - 45 AMG Engine with Catalytic Converter

SKU: Downpipe:49.133.0345
Base price: $2,440.00
Sales price without tax: $2,440.00
$2,44EUR excl. shipping
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Our performance downpipe has been developed specifically for the CLA 45 to maximize exhaust gas flow, minimize back pressure and is a complete bolt-on power solution.

Crafted from T-304 stainless steel and featuring a 3.5" inlet and 3"outlet, our downpipe mates perfectly with the OEM exhaust and requires no ECU modifications due to our specially coated hi flow tri-metal catalytic converter. The 200 cell catalytic is significantly freer flowing than the restrictive OEM catalytic yet efficiently filters exhaust gases to ensure the check engine light remains off. 

Our down pipe is finished in a thermal resistant coating and requires no modifications to the OEM system. 


  • +10 HP, +10 TQ
  • 200 Cell Sport Cat
  • No Check Engine Light!
  • No re-programming of ECU needed!
  • Mercedes-Benz 176 - A 45 AMG
  • Mercedes-Benz 117 - CLA 45 AMG
  • Mercedes-Benz 156 - GLA 45 AMG