B58 Catless Downpipes - BMW 240i/340i/440i/540i/740i
The B58 Catless Downpipes not only enhance performance but also contribute to a more aggressive exhaust note, adding a deeper and sportier tone to the sound profile of your BMW. This auditory enhancement complements the dynamic performance characteristics of the B58 engine, enhancing the overall driving experience.
Whether you're seeking to optimize performance for spirited driving or looking to extract more power from your BMW B58 engine, Catless Downpipes stand as a reliable upgrade choice, combining precision engineering with enhanced exhaust flow dynamics to unlock the true potential of your vehicle.
Features:
Made out of high quality 304 stainless steel
- 100% perfect fit, replace OEM
- Less thermal load on the turbocharger
- More power by reducing back pressure
- Significantly more torque
- Including reduction to stock exhaust system
• Higher Maximum Horsepower
• Higher torque + keeps maximum torque for longer
• Better throttle response to hit max torque and max HP sooner
• 4.5” pipe for max airflow + a smooth transition to the flange
• Made from High grade stainless
• 100% TIG welded for better quality welds
• Precision CNC machined turbocharger V-Band flange.
• Offered in brushed and polished finish.
• Also offered in black thermal coating for better heat management.
• Optional EGT bung for use with EGT gauges. Bung is capped in case user does not wish to use it all the time.
• Compatible with stock exhaust system and all the other exhausts systems that use stock connections.
Note:
There are no installation instructions and guidance. Professional installation is recommended. Please check the correct model before purchasing.
• Proven to last and track tested for durability.
Fitment:
M140i / xDrive 2016-2019 F20
M240i / xDrive 2016-2019 F22/F23
340i / xDrive 2016-2019 F30/F31
440i / xDrive 2016-2019 F32/F33/F36/G22/G23/G26
540i / xDrive 2017-2019 G30/G31
740i / xDrive 2016-2019 G11/G12
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.
Why Thousands of Enthusiasts Trust Us
Carbon Industries delivers premium, precision-engineered parts that elevate Vehicle performance and style—backed by expert support and a true passion for the culture. We don’t just sell parts; we fuel the lifestyle.
- Guaranteed Fitment for Your BMW: No guesswork—our parts are designed and tested to fit your exact model perfectly.
- Premium Materials, Always: We use only high-grade carbon fiber, forged metals, and performance-tested components.
- White-Glove Customer Support: Our team of BMW specialists is here to guide you with expert, concierge-level care.
- Trusted by the Elite Vehicle Community: From daily drivers to show builds, our parts are featured on some of the cleanest builds worldwide.
Let customers speak for us
The folks at Carbon Industries were super helpful, asking everything about my vehicle to ensure I got the correct parts. The parts came in a very timely manner, all very well packaged. The quality is superb, transformed my cars interior. After care has also been fantastic. 100% a pleasure
Installing this weekend, hopefully
The badges look excellent and I can tell they are high quality. The shipping was also fast. I would recommend these. Product is as deserved.
Took less than 20 minutes to put on and looks great. Durable and flexible! 10/10
It look very good. I like this product
Orders was shipped fast! Packaging was on point ans safe, arrived earlier than expected. Product quality was amazing! Communication with support team is fast and excellent.
Thanks, fast shipping, and good quality
Today I had the "Carbon Fiber Exhaust Tip Set" installed on my '21 BMW M340. The new exhaust tips fit great, look great, and I'm very happy with the product. My mechanic also mentioned the precise fitment and ease of installation. The new tips look so much better than stock. I can highly recommend this particular product.
Shipped in a nicely wrapped package. Perfect fit, Looks great!
The side canards I bought for my Lexus LC 500 were absolutely fantastic. They were packed and shipped very nicely and look absolutely flawless. Carbon Industries provided me with tracking a day so after I paid and their communication with me was amazing. Anytime I sent this company an email inquiry they answered me almost immediately. Their customer service was awesome. If I could give Carbon Industires 6 stars I would!!!
Love the new Track look
Great service
Extremely good quality 10/10, came fast and amazing customer support
I returned it bc I bought the wrong ones. Not their fault tho I could tell it was good quality
The carbon fiber rear spoiler was very well protected in the packaging and the shipping process was very fast.
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FAQ
Will these parts fit my specific Vehicle model and year?
Yes — every product page includes a “Will This Fit” section to ensure compatibility. If you’re unsure, just send us your VIN or model/year, and our team will confirm fitment for you within 24 hours. We specialize in BMW and European vehicles, so you’re in good hands.
Are these genuine carbon fiber or carbon fiber overlay parts?
We offer only full carbon fiber options. Each listing clearly specifies the construction material. Rest assured, we only source high-quality parts that are durability-tested and made to OEM or better standards.
How long does shipping take and where do you ship from?
Most orders ship from our Irvine, CA warehouse within 1–3 business days. Domestic delivery typically takes 3–7 business days. International shipping times vary by country. Each product page includes real-time shipping estimates based on your location. Certain made to order products will take up to 3-4 weeksfor delivery, including production time.
Do I need professional installation or can I install it myself?
Many of our mods are designed for direct bolt-on installation and can be installed at home with basic tools. However, for certain parts like aero kits or performance components, we recommend professional installation for best results. Each product page includes install difficulty and notes. We offer professional installation at our Santa Clara, CA location.
What if the product doesn’t fit or I change my mind?
No worries — we offer hassle-free returns within 30 days of delivery. If the part doesn’t fit due to an error on our end, we’ll cover the return shipping. For all other returns, we make it easy to exchange or get a refund. See our full Returns & Warranty Policy for details.
Are your parts tested for quality and durability?
Absolutely. All of our products go through quality control checks and are either TUV-certified, ISO-certified, or tested by our in-house team and verified installers. We don’t sell anything we wouldn’t put on our own cars.
Do you offer warranties on your parts?
Yes. Most of our products come with a 90-day limited warranty against manufacturing defects. Some premium items offer extended warranties — details are listed on the product pages. We’re committed to quality and stand behind what we sell.
Can I finance or pay in installments?
Yes — we offer Shop Pay, Affirm, AfterPay, and Klarna at checkout. You can split your purchase into 4 interest-free payments or choose longer-term plans if needed. It’s quick, easy, and won’t affect your credit score (in most cases)
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