UP TO 180HP INCREASE

ZAC 3.5" downpipes flow significantly more than the restrictive factory downpipes, increasing performance and sound characteristics, with the road version featuring environmentally friendly 200 CEL catalytic convertors

Optimum Performance Upgrades from ZAC Motorsport

ZAC SHF E63 Downpipes. Improves power by reducing exhaust restriction, option of with or without catalytic convertor. Increased exhaust volume and note. REQUIRES TUNE

ZAC OPTIMUM SILVER Tuning Remote tuning that combines years of research and development and is specifically optimized to suit ZAC Motorsport hardware. 

More information below

• Hardware

• Vehicle Fitment

• "Optimum" tuning

• Freight and Support

• Downpipes

  3.5" 304 high grade CNC mandrel bent stainless steel construction

  3" outlet to standard exhaust system

  OEM style fitment and mounting points

  choose catless or option a 200cel catalytic converter

  
  
  

• This Product Suits the following:
  

  This Product Suits the following:

  Mercedes AMG X290 GT63 all variants

  Mercedes AMG X290 GT63s all variants

   

   

• The Products on this page are valid for the following OPTIMUM Tune levels :

   

  SILVER

  For higher tune levels more hardware is required.

  conditions please click the link below

   

   

   

   

   

   

   

   

   

• Freight
  We air freight worldwide free of charge, you may upgrade to our premium express service if you would like your item faster.

  Warranty

  All our items are covered by a 2 year warranty

  Returns

  All ZAC products are covered by our 30 day returns policy for your piece of mind

  All ZAC OPTIMUM tunes are covered by our 14 day satisfaction guarantee for your piece of mind, don't like the tune? We can set your car back to stock and refund you the tune cost

  More details available at the bottom of this page