Redstar Mercedes A45/CLA45/GLA45 M139 Downpipe
Pairs well with
Unleash your AMG with Redstar Exhaust M139 Downpipes, precision matched to the 2.0L 4cyl M139 in the 2020+ Mercedes A45/A45S AMG Hatchback W177, CLA45/CLA45S AMG Coupe C118, and GLA45/GLA45S AMG SUV H247. This performance exhaust upgrade replaces the factory downpipe assembly to let the M139 breathe as it should, delivering a transformative step for tuning-focused builds.
Engineered with a flow-optimised smooth transition design, these downpipes sharpen throttle response and promote faster turbo spool, while the optional OEM-style heat shielding cuts radiant under-bonnet heat by up to 80% to help protect surrounding components and support turbo longevity. Tailor your setup with high-output catalytic options, including HJS HD 200cpsi and GESI GEN2 400cpsi converters, both rated to support up to 1000hp, or opt for a competition catless configuration for maximum flow.
Built for durability and seamless fitment, each Redstar downpipe uses highest quality 2.0 mm wall 304L stainless steel, is 100% TIG welded and back purged, and features OEM-spec bottom ball flanges with factory-style brackets. The result is a true bolt-on solution that integrates cleanly, is LHD/RHD compliant, and adds a refined, more engaging exhaust tone to your Mercedes AMG. Redstar - performance exhaust engineering without compromise.
Available Options
Key Performance Benefits
- Noticeable power and torque gains
- Faster turbo spool and sharper throttle response
- Lower engine bay temperatures for improved component longevity
- Enhanced and more engaging exhaust tone
- True bolt-on installation that integrates with factory mounting points
Technical Specifications
- Highest quality 2.0 mm wall 304L stainless steel construction
- 100 percent TIG welded and back purged
- OEM-spec bottom ball flanges
- All brackets and mounts replicated from the OEM unit
- LHD and RHD compliant
- Flow-optimised smooth transition design
Notes
- EURO 5/6 Compliant when equipped with HJS HD 200cpsi catalytic converters
Manufacturer fitment
- 2020+ Mercedes A45 / A45S AMG Hatchback W177 2.0L 4cyl M139
- 2020+ Mercedes CLA45 / CLA45S AMG Coupe C118 2.0L 4cyl M139
- 2020+ Mercedes GLA45 / GLA45S AMG SUV H247 2.0L 4cyl M139
Fits
Mercedes-Benz A-Class (W177) Hatchback AMG A45 S 2019-current
Mercedes-Benz CLA (C118) Coupe AMG CLA45 S 2019-current
Mercedes-Benz GLA (H247) SUV AMG GLA45 S 2020-current
Professional fitting is recommended.
Redstar Mercedes A45/CLA45/GLA45 M139 Downpipe
HJS HD 200cpsi 130mm / Heat Shielded / OPF Equipped
$5,929.00
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