Description
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Maximize the performance of your BMW with the German Car Accessories (GCA) Performance B58 Downpipe, engineered specifically for the 2016-2019 BMW M140i F20/F21 models equipped with the 3.0L Turbocharged B58 inline-six engine.
Designed by German Car Accessories, also known as GCA, under our GCA Performance product line, this high-flow downpipe replaces the restrictive factory unit to significantly improve exhaust flow directly from the turbocharger. By reducing exhaust back pressure, it allows the B58 engine to spool faster, delivering sharper throttle response, stronger mid-range acceleration, and increased horsepower and torque potential when paired with supporting performance modifications and ECU tuning.
Constructed from high-quality T304 stainless steel, this downpipe is built to withstand extreme temperatures while providing outstanding corrosion resistance and long-lasting durability. Smooth mandrel-bent tubing maximizes exhaust flow, and precision TIG welds ensure superior strength, reliability, and OEM-quality fitment.
Whether you're looking for improved acceleration, enhanced turbo efficiency, or a deeper and more aggressive exhaust note, this downpipe is one of the most effective bolt-on upgrades for your B58-powered M140i.
Designed as a direct bolt-on replacement, it installs using factory mounting locations without permanent modifications. The fully reversible design allows your vehicle to be returned to its original factory configuration whenever required.
Every German Car Accessories performance product is backed by our 1-Year Warranty for complete confidence and peace of mind.
Fitment:
2016-2019 BMW M140i (F20 Hatchback)
2016-2019 BMW M140i (F21 Hatchback)
Engine Compatibility:
3.0L Turbocharged B58 Inline-6 Engine
Key Features:
- Specifically engineered for BMW M140i F20/F21 models
- Compatible with the BMW B58 turbocharged inline-six engine
- High-flow performance downpipe improves exhaust flow
- Reduces exhaust back pressure for improved turbocharger efficiency
- Helps increase horsepower and torque potential
- Improves turbo spool and throttle response
- Produces a deeper and more aggressive exhaust note
- Manufactured from high-quality T304 stainless steel
- Smooth mandrel-bent tubing for optimized exhaust flow
- Precision TIG welds for superior strength and durability
- Corrosion-resistant construction for long-lasting reliability
- Lightweight performance design
- Direct bolt-on installation
- 100% reversible—return to factory configuration at any time
- Includes all necessary mounting hardware
- Backed by the German Car Accessories 1-Year Warranty
Upgrade your BMW M140i with the GCA Performance B58 Downpipe and experience faster turbo response, improved exhaust flow, increased horsepower and torque potential, and a more engaging driving experience from your B58-powered F20/F21.
