Unleash the true potential of your BMW G20/G29 M340i or A90 Supra with Catless Downpipes, meticulously engineered to enhance performance and amplify the exhilarating sound of the B58 engine. Crafted from high-quality stainless steel, these downpipes are designed to replace the factory catalytic converters, optimizing exhaust gas flow and minimizing back pressure.

By eliminating the restrictive catalytic converters, the B58 Catless Downpipes improve exhaust scavenging efficiency. This enhancement allows the turbochargers to spool faster and more responsively, resulting in significant gains in horsepower and torque across the RPM range. Experience exhilarating acceleration and improved throttle response that elevate your driving experience to new levels of performance.

Precision welding and construction ensure durability and reliability, making these downpipes suitable for both street and track use. Each component is designed to integrate seamlessly with the factory exhaust system, utilizing OEM mounting points for straightforward installation without the need for extensive modifications.

In addition to performance gains, the B58 Catless Downpipes contribute to a more aggressive and sporty exhaust note. The enhanced sound profile adds a deeper and more pronounced tone, resonating with the dynamic characteristics of the B58 engine and enhancing the overall auditory experience during spirited driving.

Whether you're pushing the limits on the track or enjoying spirited drives on winding roads, Catless Downpipes provide a substantial performance upgrade for BMW G20/G29 M340i and A90 Supra owners seeking to maximize the potential of their B58 engine.

Features:

1. Enhanced Performance: Designed to remove the catalytic converters, these catless downpipes reduce exhaust back pressure, allowing for improved exhaust flow and ultimately unlocking additional horsepower and torque from the BMW B58 engine.
2. Aggressive Sound: With the removal of the catalytic converters, these downpipes produce a more aggressive and exhilarating exhaust note, adding a thrilling soundtrack to your driving experience.
3. High-Quality Construction: Crafted from premium materials such as stainless steel or titanium, these downpipes ensure durability and longevity, withstanding the high temperatures and harsh conditions of the exhaust system.
4. Plug-and-Play Installation: Engineered for easy installation, these downpipes feature a direct bolt-on design that seamlessly integrates with the BMW B58 engine, requiring no modifications for a hassle-free upgrade.

Fitment:

 BMW G30 G20 G22 G32 B58 M240i M340i M440i 540i 640i 3.0T

We want you to have our parts as quickly as possible. Products that are in stock will be shipped and delivered domestically in 1–5 business days. It will take seven to twenty-one business days for international shipment. An email confirming that your order is being completed will be sent to you once you place it. For in-house orders, please allow a day for processing and the updating of the tracking number. The product page accurately shows the quantity.

Custom steering wheels typically take 20-25 business days for production, with an additional 5-7 business days for shipping. Production and delivery times may vary depending on the complexity of the order and the shipping destination. For more details, please refer to our Shipping Policy.

Our Return Policy permits returns only for products that are found to be defective. You have 30 days from the date of delivery to inspect the product and report any issues.

Regular Cleaning: Maintain carbon fiber parts by cleaning them regularly with a soft cloth and a mixture of mild soap and water. Avoid abrasive or harsh cleaners that could harm the finish.

Use Microfiber Pads and Cloths: Opt for microfiber pads and cloths when cleaning or applying protective coatings to prevent surface scratches.

Protect from Sun and Chemicals: Limit exposure to direct sunlight and harsh chemicals, as they can damage carbon fiber. When possible, use protective covers or park your vehicle in shaded areas.