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Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes
Redstar BMW G9X M5 Primary Downpipes

Redstar BMW G9X M5 Primary Downpipes

Catalyst Type
Catalyst Type: GESI GEN2 UHO+ 400cpsi 5"
Heat Shielding
Heat Shielding: No Heat Shielding
Need installation?

Pairs well with

Unleash the potential of your BMW G90 M5 and G99 M5 Touring with Redstar Exhaust Primary Downpipes for the S68 V8. These performance exhaust downpipes replace the factory primary downpipe section to reduce restriction and let the S68 breathe as intended, making them an ideal upgrade for owners looking to elevate power and response while keeping full compatibility with OEM components.

By improving exhaust flow and lowering backpressure, the Redstar downpipes deliver faster turbo spool and noticeably sharper throttle response, alongside meaningful gains in power and torque. The result is a more engaging, assertive exhaust character that enhances the M5 driving experience without compromise. For drivers prioritising thermal control, Redstar's OEM-style heat shielding option further manages radiant heat in the engine bay.

Engineered for durability and precision, each set is 100% bolt-on and built from highest quality 2.0mm wall 304 stainless steel, TIG welded and back purged with OEM-spec flanges and factory-style brackets. Designed to integrate cleanly with your BMW, Redstar downpipes combine robust construction with performance-focused design. Keywords: BMW G90 M5, BMW G99 M5 Touring, S68 V8, performance exhaust, downpipes, Redstar.

Available Options

  • HJS HD 200cpsi Catalytic Converters: Engineered in Germany and trusted worldwide, the HJS 200cpsi ultra high-performance cats are rated for over 1000hp. Renowned for exceptional flow, durability, and consistent quality, these converters set the benchmark for high-output applications. Ideal for drivers demanding maximum performance without compromise.
  • OEM-Style Heat Shielding: Redstar's signature thermal management system reduces radiant exhaust heat by up to 80%. Developed with motorsport-inspired materials and construction, it uses a multi-layer design of ceramic insulation and embossed stainless steel foil. Unlike wraps or coatings that degrade quickly, Redstar shielding delivers long-term durability and consistent protection for engine bay components.

Key Performance Benefits

  • Noticeable power and torque gains
  • Faster turbo spool and sharper throttle response
  • Reduced under-bonnet temperatures to help protect components and extend turbo life
  • More assertive and engaging exhaust tone
  • True bolt-on installation using factory mounting points

Technical Specifications

  • Highest quality 2.0mm wall 304 stainless steel
  • 100% TIG welded and back purged
  • OEM-spec flanges for precise sealing and alignment
  • All brackets and mounts mirror the OEM unit

Manufacturer fitment

  • 2025+ G90 M5
  • 2025+ G99 M5 Touring

Fits

BMW M5 (G90) Sedan M5 2024-current
BMW M5 (G99) Wagon M5 2024-current

Professional fitting is recommended.

Services we specialise in

Track Preparation

At Heasmans, we understand the thrill of motorsport and the importance of perfect preparation. That's why we offer comprehensive track preparation services designed to optimize your race car's performance and safety. Our expert team, equipped with the latest technology and a wealth of experience, ensures that your vehicle is race-ready, whether you're a seasoned competitor or just starting out. Dive into our suite of services and discover how we can elevate your racing experience.

Corner-Weight Adjustment

Corner-weight adjustments, also known as balancing or scaling, are essential for any vehicle aiming to achieve optimal performance, handling, and stability. This process involves adjusting the weight distribution across all four wheels, ensuring that each carries an equal part of the car’s total weight. Ideal for racing enthusiasts, track-day heroes, and those who demand precision in their vehicle’s handling, corner-weight adjustments can significantly impact your driving experience.

Wheel Alignments

Wheel alignment is not just about a smoother ride; it’s a vital service that affects your vehicle’s handling, fuel efficiency, and tire lifespan. Misalignment can lead to uneven tire wear, poor fuel economy, and potentially unsafe driving conditions. Regular checks ensure your vehicle performs at its best.

Safety and Spanner Checks

Ensuring your vehicle operates at its best is not just about performance; it's about safety. At Heasmans, our dedicated Safety and Spanner Checks are designed to give you complete peace of mind on the road. With a team of experienced professionals, we provide thorough inspections and necessary adjustments to maintain your vehicle's reliability and performance.

Premium Wheels

When it comes to enhancing your vehicle's performance and aesthetics, the choice of wheels plays a pivotal role. At Heasmans, we understand this better than anyone. That's why we offer an exclusive collection of premium wheels from the world's most renowned brands like Vossen Wheels, HRE Wheels, Novitec Wheels, and Mansory Wheels, among others. Each brand we offer stands as a testament to our commitment to quality, innovation, and design.

Body Styling

We specialize in elevating the aesthetics and functionality of your vehicle through our premium body styling services. Our expert team is passionate about transforming your car into a statement piece that reflects your unique style while ensuring it stands out on the road.