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For BMW M340I 3.0T High-Flow Catalytic Downpipe / Catalyst Downpipe

Original price was: $612.00.Current price is: $520.00.

Discount valid for 24 hours

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SKU: BMW M340I 3.0T-4-1 Categories: , ,

Warranty service:3 years

Production cycle:10-15DAYS

Overview

High-Flow Catalytic Downpipe (Sport Catalyst / High-Flow Cat)

For BMW M340i (G20/G26) 3.0T

Performance Downpipe | High-Flow Catalytic Converter | Enhanced Turbo Spool & Exhaust Scavenging | Premium 304 Stainless Steel Construction

Unlock Maximum B58 Turbo Performance, Sharper Throttle Response & Deep Exhaust Resonance for Your M340i.

Engineered specifically for the BMW M340i powered by the 3.0T B58 turbocharged inline-six engine, this high-performance catalytic downpipe optimizes exhaust gas flow directly out of the turbocharger. By replacing the restrictive factory catalyst with a high-flow core, it dramatically reduces backpressure, quickens turbo spool times, and unleashes a deeper, more aggressive exhaust note without inducing excessive cabin drone.

Crafted for Superior Thermal Management and Durability Built from premium 304 stainless steel, this downpipe is designed to withstand extreme exhaust gas temperatures and high boost pressures. Precision-engineered for an exact factory-spec fit, it integrates seamlessly with the factory turbo and mid-pipe setup on the G20/G26 platform, ensuring maximum reliability and long-term performance.

DETAIL

🔥 Key Feature

High-Flow Catalytic Converter Core Features a high-flow sport catalyst that reduces exhaust restriction while maintaining emissions management, striking the ideal balance between performance gains and street usability.

Optimized B58 Turbo Flow Drastically decreases backpressure from the turbocharger, resulting in faster spool-up, improved mid-to-top-end power delivery, and crisper throttle response.

Premium 304 Stainless Steel Build Constructed from high-grade stainless steel to resist corrosion, cracking, and severe thermal fatigue under high-boost conditions.

Precision TIG-Welded Construction Expertly hand-welded using TIG techniques to guarantee smooth internal gas dynamics, robust structural longevity, and a leak-free seal.

Direct OEM-Style Fitment Engineered to line up precisely with factory mounting points, hanger locations, and oxygen sensor bungs for a straightforward installation process.

spec
Fitment: BMW M340i / Sedan & Gran Coupe (G20 / G26)
Engine:3.0L Turbocharged Inline-6 (3.0T / B58)
System Type:High-Flow Catalytic Downpipe
Warranty:3 Years
Welding:Precision TIG Welded
Material:304 Stainless Steel 
Installation:Direct Bolt-On
COMPANY VIDEO

We are a 15-year-old factory specializing in manufacturing high-quality automobile exhaust systems and accessories. Our product range includes exhaust manifolds, downpipes, cat-back exhausts, mufflers, electronic valves, exhaust tips, and other auto parts.

Why Choose Our Exhaust Systems?

☆ Perfect Fit: Manufactured according to the original car’s mounting holes, ensuring 100% installation compatibility.
☆ Experience & Expertise: With over 13 years in exhaust production and sales, we have molds for the most popular models, widely praised by our customers.
☆ Advanced Mufflers: Our factory-developed mufflers provide a silencing effect close to the original exhaust, delivering a comfortable driving experience.
☆ Electronic Valve Control: Equipped with our latest electronically controlled valves, allowing you to adjust the exhaust sound freely.
☆ Reliable Production & Delivery: Independently produced in our factory, with 100% order fulfillment and guaranteed delivery times.
☆ Customized Services: We offer tailored exhaust solutions for various car models according to your needs.

Our Expertise

For 15 years, we have specialized in manufacturing, producing, and selling automobile exhaust systems, with thousands of original exhaust models in our database. Our coverage includes brands such as:

Porsche | BMW | Mercedes-Benz | Audi | McLaren | Ferrari | Mitsubishi | Lamborghini | Bentley | Subaru | Aston Martin | Toyota | Volkswagen | Cadillac | Camaro | Dodge | Jaguar | Nissan | Alfa Romeo | Maserati

If you have a specific model and custom requirements, click here to inquire and contact us. We will provide professional solutions tailored to your vehicle.

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faq

  • What vehicles is this catback exhaust system compatible with?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • What does “catback” mean, and how is it different from other exhaust systems?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • What performance benefits will I gain from installing this catback exhaust?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • Is this exhaust system street-legal? Does it comply with emissions laws?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

  • Can I install this exhaust myself, or do I need a professional?

    This catback exhaust system is specifically designed for BMW M340i (G20 chassis, 2019+) and BMW M440i (G22 chassis, 2021+) models equipped with the 3.0T B58 engine. It is not compatible with non-M340i/M440i 3 Series (G20) or 4 Series (G22) variants, or models with different engine configurations.

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