Redstar BMW G80 M3/M4/G87 M2 Downpipes
Pairs well with
Unleash performance from your BMW G80 G81 M3, G82 G83 M4, G87 M2 and Alpina B3/B3 GT G20 G21 with the S58 by fitting Redstar performance exhaust downpipes. Purpose-built for 2020+ M3 and M4, 2023+ M2, and 2025+ LCI Competition variants, these downpipes replace the restrictive factory sections to free the turbos and let the S58 breathe.
A flow-optimised, smooth-transition design reduces backpressure to deliver significant power gains, quicker spool, and sharper throttle response. Optional OEM-style heat shielding reduces radiant exhaust heat by up to 80% to help manage under-bonnet temperatures. Choose high-flow catted configurations with HJS HD 200cpsi metal cores or GESI GEN2 400cpsi converters, both designed to improve exhaust flow compared with stock while maintaining robust operation on the S58 platform.
Every Redstar downpipe is 100% hand made from 2.0mm wall 304L stainless steel with OEM-spec 304L flanges, then TIG welded and back purged for strength and consistency. Designed as a true bolt-on with all OEM-style brackets and LHD/RHD compatibility, the system elevates the exhaust note while supporting turbo longevity through freer flow. Redstar delivers precision engineering, durability, and the unmistakable quality enthusiasts expect from a leading performance exhaust specialist.
Available Options
Key Performance Benefits
- Significant power gain
- Faster spool and improved throttle response
- Lower under-bonnet temperatures for better component protection
- Richer, more engaging exhaust tone
- Direct bolt-on installation using factory-style mounting points
- Reduced backpressure to support turbocharger longevity
Technical Specifications
- Highest quality 2.0mm wall 304L stainless steel construction
- 100% TIG welded and back purged
- 100% hand made
- OEM-spec 304L stainless steel flanges
- Flow-optimised smooth transition design
- All brackets and mounts as on OEM unit
- LHD/RHD compliant
Manufacturer fitment
- 2020+ BMW M3 G80 G81 / M4 G82 G83 With S58 Motor
- 2025+ BMW M3 / M4 LCI Competition
- 2020+ Alpina B3 / B3 GT G20 G21 With S58 Motor
- 2023+ BMW M2 G87 With S58 Motor
- 2025+ BMW M2 LCI
Fits
BMW M2 (G87) Coupe CS 2025-current
BMW M2 (G87) Coupe M2 2023-current
BMW M3 (G80) Sedan CS 2023-current
BMW M3 (G80) Sedan Competition 2021-current
BMW M3 (G80) Sedan Competition xDrive 2021-current
BMW M3 (G80) Sedan M3 2021-current
BMW M3 (G81) Wagon CS 2025-current
BMW M3 (G81) Wagon Competition xDrive 2022-current
BMW M4 (G82) Coupe CSL 2022-2023
BMW M4 (G82) Coupe Competition 2021-current
BMW M4 (G82) Coupe Competition xDrive 2021-current
BMW M4 (G82) Coupe M4 2021-current
BMW M4 (G83) Convertible Competition xDrive 2021-current
Professional fitting is recommended.
Redstar BMW G80 M3/M4/G87 M2 Downpipes
GESI GEN2 UHO+ 400cpsi 4.5" / Heat Shielded
$6,789.00
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.
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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.
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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.
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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.
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