Manufacturer | Weistec |
Street legal in all the US States | No |
Engine Family | M139 |
United States Excluded | 1 |
year | make | model | trim | engine |
---|---|---|---|---|
2022 | Mercedes-Benz | GLA 45 | Hatchback (H247) | Turbocharged 2L I4 (M139) |
2022 | Mercedes-Benz | A 45 | Hatchback (W177) | Turbocharged 2L I4 (M139) |
2022 | Mercedes-Benz | A 45 | Sedan (V177) | Turbocharged 2L I4 (M139) |
2022 | Mercedes-Benz | CLA 45 | Sedan (C118) | Turbocharged 2L I4 (M139) |
2021 | Mercedes-Benz | GLA 45 | Hatchback (H247) | Turbocharged 2L I4 (M139) |
2021 | Mercedes-Benz | A 45 | Sedan (V177) | Turbocharged 2L I4 (M139) |
See more |

FABRICATED IN HOUSE
Weistec Engineering offers the M139 Downpipe for the Mercedes Benz M139 equipped vehicles. The downpipe was 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 bracket to mate with factory mounting points, giving this system a perfect fit.
FUNCTIONAL
Our downpipes feature 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.

Key Features:
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