The BMW N63R Downpipe is a high-quality, catless, high-flow downpipe specifically designed for BMW models with the powerful N63R biturbo V8 engine. This performance downpipe eliminates restrictive catalytic converters and maximizes exhaust gas flow, resulting in significant power gains, improved turbo response, and a more aggressive exhaust note. Perfect for the BMW enthusiast seeking maximum performance from the N63R engine.
Advantages
- Significant power gains and torque improvements
- Faster turbo spool-up and improved throttle response
- More aggressive and sportier exhaust sound
- Weight reduction for better performance
- High-quality stainless steel construction for durability
- Direct bolt-on installation without modifications
Material & Construction
The downpipe is made of premium stainless steel (304 stainless steel) that is resistant to extreme temperatures and corrosion. The material has been carefully selected to ensure optimal durability, even under the most demanding riding conditions.
The construction utilizes precision TIG-welded joints for a perfect fit and maximum strength. All flanges are CNC-machined to OEM specifications for a perfect fit with the original turbochargers and exhaust system.
The catless high-flow design completely eliminates restrictive catalytic converters, allowing exhaust gases to flow freely. This results in measurable performance improvements and a characteristic V8 biturbo sound reminiscent of performance BMWs of the past.
Sound & Performance
Removing the catalytic converters gives your BMW a much more aggressive and raw exhaust note. The 4.4-liter twin-turbo V8 engine comes to life with a deep, resonant roar at low revs and a powerful, race-inspired sound at high revs.
The performance gains are substantial: expect an additional 30-50 hp and 60-80 Nm of torque with an ECU tune. The improved exhaust flow results in faster turbo spool-up, which translates into a more lively engine character and improved acceleration across the entire rev range.
The weight loss of approximately 12 kg contributes to better weight distribution and improved handling characteristics, especially noticeable during dynamic driving.
Installation & Assembly
The downpipe is designed as a direct replacement for the original BMW downpipes and requires no modifications to the vehicle. All mounting points, flanges, and O2 sensor connections perfectly match the factory specifications.
Professional installation by a BMW specialist or experienced workshop is highly recommended. Installation requires lifting the vehicle and accessing the underbody. Expected installation time is 4-5 hours for an experienced technician.
After installation, an ECU tune is essential to unlock its full performance potential and eliminate any check engine lights. It's recommended to work with a reputable BMW tuner experienced with the N63R engine.
Compatibility
- BMW G30 M550i xDrive (2017-2023)
- BMW G14/G15/G16 M850i xDrive (2018-2023)
- BMW G11/G12 750i xDrive (2015-2022)
- BMW G05/G06 X5/X6 M60i xDrive (2019-2023)
- BMW G07 X7 M50i (2019-2023)
Please note: This downpipe is catless and not suitable for use on public roads in countries where emissions regulations prohibit it. It is intended for track and off-road use only.
Technical Specifications
| Material
|
Stainless steel 304 (stainless steel) |
| Type
|
Catless High Flow Downpipe Set |
| Weight
|
15 kg (OEM: 27 kg) |
| Weight saving
|
12 kg |
| Diameter
|
76mm (3 inch) |
| Finishing
|
Polished stainless steel |
| Installation type
|
Bolt-on (direct replacement) |
| O2 sensor compatible
|
Yes (including connections) |
| Engine
|
N63R V8 Biturbo |
Maintenance & Warranty
The downpipe requires minimal maintenance thanks to its high-quality stainless steel construction. Check the mounting bolts for proper torque after the first 500 kilometers. Regularly inspect the downpipes for signs of leaks, especially at the flange connections to the turbochargers.
2-year manufacturer's warranty against material and workmanship defects. The warranty does not cover damage due to improper installation, misuse, or normal wear and tear. Please retain your proof of purchase for warranty claims.
For optimal lifespan, it is recommended to have the downpipes inspected annually during regular maintenance intervals of your BMW.
Frequently Asked Questions
-
Is this downpipe legal for public road use? No, this catless downpipe is intended for track and off-road use only.
-
Do I need an ECU tune? Yes, an ECU tune is essential to unlock its full performance potential and prevent error codes.
-
How much power will I gain? Expect an extra 30-50 hp and 60-80 Nm of torque with an ECU tune.
-
Will this downpipe fit my M550i? Yes, this downpipe is compatible with all BMW models with the N63R engine (see compatibility list).
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How long does installation take? Professional installation takes about 4-5 hours.
-
How much weight do I save? The downpipe saves about 12 kg compared to the original BMW downpipes.
