Description
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Unleash the true potential of your BMW 640i with the GCA Performance Downpipe for 2015-2017 F06, F12, and F13 models equipped with the N55 3.0L Turbocharged Inline-6 engine and Electronic Wastegate (EWG). Designed by German Car Accessories under our GCA Performance lineup, this high-flow downpipe is engineered to improve exhaust flow, reduce turbo restrictions, and deliver noticeable gains in power and responsiveness.
Constructed from premium T304 stainless steel, this downpipe offers exceptional durability, corrosion resistance, and long-term reliability under demanding driving conditions. By reducing backpressure directly after the turbocharger, it allows the N55 engine to breathe more efficiently, resulting in improved throttle response, faster turbo spool, and increased horsepower and torque throughout the powerband.
Whether you're looking to enhance your daily driving experience or build a more performance-focused 640i, this downpipe provides one of the most effective upgrades available for the N55 platform.
Every downpipe is precision TIG welded to ensure maximum strength, perfect fitment, and long-lasting performance. Designed as a direct bolt-on upgrade, installation is fully reversible, allowing you to return the vehicle to stock configuration at any time.
At German Car Accessories, we stand behind our products with a comprehensive 1-Year Warranty for complete peace of mind.
Key Features
- Designed by GCA Performance
- High-flow performance downpipe design
- Increased exhaust flow and reduced backpressure
- Improved turbocharger efficiency
- Faster turbo spool and throttle response
- Increased horsepower and torque potential
- Constructed from premium T304 stainless steel
- Precision TIG welded construction
- OEM-style direct-fit installation
- Corrosion and heat-resistant materials
- Fully reversible modification
- Includes all required mounting hardware
- Compatible with Electronic Wastegate (EWG) models
- Backed by a 1-Year Warranty
Vehicle Fitment
BMW 6-Series (N55 EWG Models)
- 2015 BMW 640i Gran Coupe (F06)
- 2016 BMW 640i Gran Coupe (F06)
- 2017 BMW 640i Gran Coupe (F06)
- 2015 BMW 640i Coupe (F13)
- 2016 BMW 640i Coupe (F13)
- 2017 BMW 640i Coupe (F13)
- 2015 BMW 640i Convertible (F12)
- 2016 BMW 640i Convertible (F12)
- 2017 BMW 640i Convertible (F12)
- 2015 BMW 640i xDrive Gran Coupe (F06)
- 2016 BMW 640i xDrive Gran Coupe (F06)
- 2017 BMW 640i xDrive Gran Coupe (F06)
- 2015 BMW 640i xDrive Coupe (F13)
- 2016 BMW 640i xDrive Coupe (F13)
- 2017 BMW 640i xDrive Coupe (F13)
- 2015 BMW 640i xDrive Convertible (F12)
- 2016 BMW 640i xDrive Convertible (F12)
- 2017 BMW 640i xDrive Convertible (F12)
Engine Compatibility
- N55 3.0L Turbocharged Inline-6
- Electronic Wastegate (EWG) Models Only
Specifications
- Fitment: 2015-2017 BMW 640i / 640i xDrive
- Chassis Codes: F06, F12, F13
- Engine: N55 3.0L Turbo Inline-6
- Wastegate Type: Electronic Wastegate (EWG)
- Material: High-Quality T304 Stainless Steel
- Construction: Precision TIG Welded
- Installation: Direct Bolt-On
- Hardware Included: Yes
- Reversible Installation: Yes
- Warranty: 1 Year
Benefits of a High-Flow Downpipe
The factory downpipe is one of the most restrictive components in the turbocharger exhaust system. Replacing it with a performance downpipe significantly improves exhaust flow, helping the turbocharger operate more efficiently and unlocking additional performance.
Potential benefits include:
- Improved throttle response
- Faster turbocharger spool
- Increased horsepower
- Increased torque
- Stronger mid-range acceleration
- Enhanced exhaust sound
- Ideal foundation for ECU tuning
