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Effortless Bmw M340i Opf Decat Downpipe With Heat Shield 440i 540i Satisfaction Guaranteed [46jdgXmy]

$67.99 $217.99 -69%

Ultimate Performance Downpipe for BMW M340i and 440i Models Introducing the BMW M340i OPF Decat Downpipe with Heat Shield, a premium upgrade designed to transform your vehicle's performance and aesthetics. This high-quality downpipe is specifically c

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Effortless Bmw M340i Opf Decat Downpipe With Heat Shield 440i 540i Satisfaction Guaranteed [46jdgXmy]

Ultimate Performance Downpipe for BMW M340i and 440i Models

Introducing the BMW M340i OPF Decat Downpipe with Heat Shield, a premium upgrade designed to transform your vehicle's performance and aesthetics. This high-quality downpipe is specifically crafted for B58 OPF engines, offering a seamless integration with your BMW M340i, 440i, 540i, 640i, 740i, and 840i models. Engineered from 4.5" stainless steel and featuring a robust heat shield, this downpipe guarantees exceptional durability and performance.

Key Features and Benefits

Experience the power of precision engineering with the M340i downpipe, machined from SS304 aircraft-grade stainless steel and Tig-welded in-house for unmatched strength. The downpipe's design allows for a faster spool of the turbo, resulting in a sharper throttle response. This downpipe promises noticeable power gains, with an estimated increase of 20-25bhp, and a more aggressive exhaust note that sounds truly amazing. Additional benefits include lower temperatures, reduced exhaust backpressure, and a substantial weight saving compared to the factory catalytic converter.
  • Stainless steel construction for durability
  • Increased power and throttle response
  • Lower exhaust backpressure and temperatures
  • Weight saving compared to factory parts

Practical Applications and Target Audience

Whether you're a performance enthusiast or a daily driver, the BMW M340i Decat Downpipe is the perfect choice for enhancing your vehicle's performance. This downpipe is compatible with a range of models, including the Z4 G29 M40i and Toyota Supra MK5 A90 GR, making it a versatile upgrade for various B58 OPF engines. Professional installation is recommended for optimal fitment, although user feedback indicates an ease of installation. To ensure a smooth fit and prevent any fuel odors, we recommend swapping the gasket in the turbo end and purchasing a Lambda Sensor Spacer. This downpipe is ideal for anyone looking to maximize their vehicle's potential, achieve better fuel efficiency, and enjoy a superior driving experience.
  • Enhanced performance for daily drivers and enthusiasts
  • Customizable for various B58 OPF engines
  • Professional installation recommended for best results

What Our Customers Say

January 27, 2026

Absolutely no complaints!

This is a rock-solid, high-quality item.

- Summer A..

January 27, 2026

Absolutely no complaints!

I'm happy with the item. It's solid.

- Staci K..

January 27, 2026

Absolutely no complaints!

It's a delight to use this product daily.

- Cora D..

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