BMW N54 & N55 Downpipe

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The BMW N54 engine is legendary, known for its twin-turbocharged performance. The N55, its successor, features a twin-scroll turbocharger that boasts a highly functional design but often restricts its true potential. We offer the BMW N54 and N55 downpipes for sale to unlock that potential!

Overview of N54 vs. N55 Engines

The BMW N54 and N55 engines are iconic inline-six powerhouses with distinct characteristics.

  • This engine has a twin-turbo setup that delivers explosive power along with a thrilling sound. However, it can be finicky and requires regular maintenance.
  • In contrast, the N55 offers a more refined and reliable experience thanks to its single twin-scroll turbocharger. While it may not deliver the same raw power as the N54, it offers better fuel economy.

Ultimately, the choice between the two engines depends on your priorities: raw power and tuning potential or refinement and reliability.

The Role of Downpipes in Performance Improvement

Replacing the restrictive factory downpipes with high-quality N54 & N55 downpipes from Palenon Performance leads to a significant power increase and provides aggressive exhaust notes that resonate with true racers. These downpipes are not just an upgrade; they offer a more exhilarating driving experience for car enthusiasts.

Types of Downpipes for BMW N54/N55

We can deliver you PWG and EWG downpipes that contain dozens of beneficial features. One common factor that racers consider is torque speed. Palenon Performance designs downpipe in a way that brings up the maximum torque.

BMW N54 Downpipes

  • Key Features and Benefits: BMW N54 downpipes provide several advantages, such as enhanced torque, sound, and throttle response. They greatly reduce exhaust back pressure by eliminating the restrictive factory catalytic converters. The removal of these catalytic converters can result in a more aggressive and thrilling exhaust note.
  • Fitment and Compatibility: N54 downpipes are specifically designed for BMW vehicles equipped with the N54 engine. This includes models like the E90 335i, E92 335i Coupe, E93 335i Convertible, E92 335is, E89 Z4 35i, E82, and 135i.

BMW N55 Downpipes

  • Key Features and Benefits: We offer both N55 PWG and EWG downpipes. The BMW N55 downpipes are similarly constructed from durable stainless steel, effectively preventing corrosion. Designed to enhance turbocharger efficiency, N55 downpipes feature reduced back pressure which enables quicker turbo spool-up and improved throttle response, resulting in a more responsive driving experience.
  • Fitment and Compatibility: They are specifically designed for the BMW N55 engine and are compatible with models like the F10 535i, F10 535i xDrive, F11 535i, F11 535i xDrive, F30 335i, F30 335i xDrive, F31 335i, F31 335i xDrive, F32 435i, F32 435i xDrive, F33 435i, F33 435i xDrive, F36 435i Gran Coupe, F36 435i xDrive Gran Coupe, F12 640i, F12 640i xDrive, F13 640i, and F13 640i xDrive.

Features for N55 PWG vs. N55 EWG Downpipes

The primary difference between N55 PWG (Pneumatic Wastegate) and N55 EWG (Electronic Wastegate) downpipes lies in the specific design and requirements of the turbocharger they cater to.

N55 PWG Downpipes

  • Design: The design will accommodate the smaller turbocharger found in earlier N55 models.
  • Flow Rate: The flow rate is optimized for the smaller turbocharger, focusing on efficient exhaust gas flow to maximize its potential.
  • Diameter: The diameter of the downpipe may be slightly smaller than EWG downpipes.

N55 EWG Downpipes

  • Design: These downpipes are designed to accommodate the larger turbocharger found in later N55 models.
  • Flow Rate: The flow rate is optimized for the larger turbocharger, allowing for greater exhaust gas flow and increased power potential.
  • Diameter: The diameter of the downpipe is typically larger than PWG downpipes to handle the increased flow rate.

Choosing Between BMW N54 vs N55 Catless Downpipes

BMW N54 Catless Downpipes

Performance Advantages and Potential Emissions Impact

Catless downpipes eliminate catalytic converters. But, users should be reminded that removing catalytic converters can dramatically make the vehicle non-compliant with emissions standards.

For the best result, you have to consider legal and environmental implications before installing catless downpipes. In many regions, using a vehicle with catless downpipes on public roads is illegal. So, consult local regulations before using a catless performance downpipe.

Fitment Requirements and Considerations

N54 catless downpipes require specific fitment for each N54-powered BMW model. Just, you have to consider factors like the vehicle's year, model, and transmission type. Additionally, we recommend professional installation to guarantee proper secure connections. 

BMW N55 Catless Downpipes

Pros and Cons of Street vs. Track Use

Street Use

  • Increased horsepower and torque, improved throttle response, and a more aggressive exhaust note.
  • Significantly increased emissions, potential legality issues, and a louder, more intrusive exhaust sound that may not be suitable for daily driving.

Track Use

  • Maximum performance gains, aggressive sound, and lightweight design.
  • Extremely loud exhaust note, potential heat shielding issues, and limited street legality.

Compatibility with Specific Models

N55 catless downpipes are compatible with the most used BMW models equipped with the N55 engine. Here is a list of the models: F10 535i, F10 535i xDrive, F11 535i, F11 535i xDrive, F30 335i, F30 335i xDrive, F31 335i, F31 335i xDrive, F32 435i, F32 435i xDrive, F33 435i, F33 435i xDrive, F36 435i Gran Coupe, F36 435i xDrive Gran Coupe, F12 640i, F12 640i xDrive, F13 640i, and F13 640i xDrive.

High Flow N55 Catted Downpipes by Palenon Perfomance

Overview of High-Quality Catted Options

Catted downpipes strike a balance between performance enhancement and emissions compliance, making them a top choice for daily drivers looking for a significant upgrade.

Benefits of Palenon Performance Downpipes for N55

  • Palenon Performance downpipes significantly reduce exhaust back pressure for better power output across the rev range.
  • Reduced back pressure results in quicker turbocharger spool-up, providing more immediate power delivery and improved throttle response.
  • Palenon downpipes produce a more aggressive and sportier exhaust note to enhance the overall driving experience of a tuner.
  • Built from premium stainless steel, Palenon downpipes are designed to withstand high temperatures and provide long-lasting performance.
  • Palenon downpipes are designed for easy installation that can minimize downtime and hassle.
  • Palenon offers both catted and catless downpipes so that you can choose the option that best suits your needs.

Environmental Considerations and Compliance

Our performance downpipes can significantly impact emissions. Especially the catted downpipes from Palenon Performance are a convenient solution for car owners.

Fitment Guide by Model Year and Engine Type

Here is an overview of the fitment between your engine and our parts. You can also ask us about anything. We can provide you with custom parts that suit your engine.

PWG N55 Downpipe

  • 2012 - 2013 BMW 335i (F30)
  • 2012 - 2013 BMW 335i xDrive (F30)
  • 2012 - 2013 BMW M135i (F20)

EWG N55 Downpipe

  • 2013 - 2015 BMW 335i (F30)
  • 2013 - 2015 BMW 335i xDrive (F30)
  • 2013 - 2016 BMW 435i (F32)
  • 2013 - 2016 BMW 435i xDrive (F32)
  • 2013 - 2016 BMW M135i (F20/F21)
  • 2015 - 2018 BMW M2 (F87)
  • 2014 - 2016 BMW M235i (F22)
  • 2014 - 2016 BMW M235i xDrive (F22) 

BMW 2010-2013 Downpipe

  • 2011 – 2013 E82 BMW 135i N55
  • 2010 – 2013 E90/E91/E92/E93 BMW 335i & 335xi N55
  • 2012 – 2015 E84 BMW X1 35i N55

2007-2013 N54 Racing Downpipes

  • 2007 – 2011 BMW 335Xi (N54) RHD & LHD Models
  • 2007 – 2010 E90/E91/E92/E93 BMW 335i
  • 2011 – 2013 E92 BMW 335is
  • 2008 – 2010 E82/E88 BMW 135i
  • 2011 – 2012 E82/E88 BMW 1M

Why Choose Palenon Performance for BMW N54/N55 Downpipes?

Palenon Performance stands out for its premium quality, improved airflow design, and commitment to enhancing the BMW N54/N55 performance. Their downpipes promise to boost both horsepower and exhaust sound while ensuring easy installation.

FAQs

Is the BMW N55 better than the N54?

The BMW N55 is generally considered more reliable than the N54. There are fewer reported issues and a simpler design is detected in N55. But, the N54 offers more tuning potential and a more engaging driving experience due to its twin-turbo setup. 

Can you put the N55 turbo on the N54?

You can put an N55 turbo on an N54 engine, but it might require significant modifications to the engine and exhaust manifold. It's technically feasible, but we do not recommend it for those without extensive mechanical knowledge and experience.

Is the N55 engine forged?

No, the stock N55 engine is not forged. It comes with cast pistons and connecting rods. The best you can do is upgrade the N55 with forged internals. Most car tuners use this as a common modification to push the limits of their N55-powered vehicles.

What is the weak point of the N55 engine?

The N55 engine has the potential for rod bearing failure, especially in higher-mileage or heavily modified vehicles. That’s why we suggest drivers monitor oil pressure and change the oil and filter regularly to eliminate this risk. If you change the rod bearing, you can pretty much ensure the engine's longevity.

When did N55 replace N54?

The BMW N55 engine began production in 2009 and gradually replaced the N54 engine in various BMW models. There have been some overlaps in 2009 and 2010; but the N55 became the standard engine for most N54-powered models by 2011.

What size turbo is the N55?

The N55 engine uses a BorgWarner B03 turbocharger with a custom 62mm compressor wheel. From this setup, you can get a balance of performance and efficiency for delivering higher power and torque across the rev range.

How long can an N55 last?

If you maintain it properly, the N55 engine can easily last over 150,000 miles. Even many owners report exceeding 250,000 miles. To get that much-overclocked performance, you can conduct regular oil changes and coolant flushes.