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Weistec M139 Downpipe

Regular price $898.99 USD
Regular price Sale price $898.99 USD
Sale Sold out


  Our downpipes features CNC Machined 304 stainless steel turbine flanges to mate with the turbo perfectly using the OEM clamp. The M139 Downpipe mates to the rest of the exhaust using an OEM style adapter for a simple bolt in installation.

*Product may not be emissions compliant. Check local laws prior to installation.  


 Weistec Engineering offers the M139 Downpipe for the Mercedes Benz M139 equiped vehicles. The downpipes were designed with the most sophisticated Computer Aided Design tools to ensure excellent fitment. The downpipe features 3.5 inch diameter piping and a laser cut precision flange to mate with factory mounting points, giving this system a perfect fit.

  • Requires W.2 ECU Tune

  • 3.5 inch diameter

  • 100% mandrel bent and TIG welded

  • Constructed of low carbon 304 Stainless Steel

  • CNC machined 304SS turbine flanges

  • Laser cut mounting brackets

  • Fully brushed finish

  • Bolt-on installation

  • Improved exhaust note

  • Improved exhaust flow

  • Improved turbo response