Supra & BMW B58 Downpipe - M340i, M440i, M240i, 340i, 440i, 540i, 640i, 740i, X5, Z4




















- Description
- Reviews
- Shipping and Refund
Boost your BMW's performance with the Palenon Performance Version-I 4.5-inch B58 Downpipe. Designed for 2020 and newer Supra 3.0T models and 2016-present BMWs, including the M340i, M440i, M240i, X5 40i, Z4, 440i, 540i, 640i, and 740i, this high-flow downpipe replaces the restrictive OEM catalytic converter to enhance turbo efficiency. Its smooth radius bends and 4.5” 304 Grade Stainless Steel construction provide faster spool times, increased power, and a bold exhaust sound. Installation is straightforward, and it works seamlessly with both factory and aftermarket exhaust systems.
Explore
Features
- Faster Spool
- Less Restriction
- Increased Power
- Aggressive exhaust note
- Easy install
- Fits Right or Left Hand Drive Vehicles
- Fits Factory and Aftermarket Exhaust
Our racing-grade downpipes are expertly crafted from premium stainless steel, using precise and standardized bending techniques to ensure optimal performance and thrilling exhaust note. Our downpipe pricing is U.S. market guaranteed. With an unwavering commitment to both price and quality, we adhere to a "customer-first" standard, ensuring that our products exceed expectations without compromise.
Profile
The installation of catless downpipes will result in an inevitable check engine light (CEL) as the DME will detect that emissions are not being burnt up by the OEM catalyst. To remove this CEL without having to tune it out we offer the CEL Delete Kit which is comprised of O2 sensor spacers specifically calibrated to comply with BMW's parameters for a functioning catalyst. These install into the post-catalyst O2 sensor bungs, effectively removing the CEL that would otherwise appear.
Purchase Link: Cel Delete Kit
Fitment
- 2019-2024 G20, G22 & G26 BMW M340i & M440i & xDrive
- 2019-2024 F22 BMW M240i & xDrive
- 2021-2024 G42 BMW M240i & xDrive
- 2019-2024 G05 BMW X5 40i & xDrive
- 2019-2024 G29 BMW Z4 M40i
- 2019-2024 G14/G15/G16 840i & xDrive
- 2016-2024 F22/F23 BMW M240i & M240i xDrive
- 2016-2019 F30/F31 BMW 340i & 340i xDrive
- 2016-2019 F32/F33/F36 BMW 440i & 440i xDrive
- 2016-2024 G30 BMW 540i & 540i xDrive
- 2016-2023 G32 GT BMW 640i & 640i xDrive
- 2016-2022 G11/G12 BMW 740i & 740i xDrive
-
2020+ Supra A90/A91 3.0T
Why Us
At Palenon Performance, we take immense pride in our Exhaust products and believe they are the ultimate choice for discerning customers. Our commitment to excellence begins with the meticulous selection of top-grade Stainless Steel Piping, ensuring unrivaled strength and durability. Our state-of-the-art manufacturing techniques guarantee precise and consistent parts that elevate vehicle performance to new heights. With a team of highly skilled engineers and designers, we continually innovate and push boundaries to deliver cutting-edge designs that seamlessly integrate with any vehicle. Furthermore, our rigorous testing and unwavering dedication to customer satisfaction make Palenon Performance the trusted brand for superior Exhaust products.
Video
This downpipe was my first purchase for my car and is well worth the money.
Great product! The quality is excellent, and shipping was super fast. I'm so pleased!
Amazing piece
Good quality and sounds 👌 👍
Great sound, good quality
Handling
Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.
For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.
Expedited shipping applies only once the item is ready to ship.
Return
You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.
To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.
You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders
Non-returnable items:
- Burger Motorsports (BMS) products
- Used items
- Air Intakes
- Hazardous materials, flammable liquids, or gases
- Discounted items and gift cards other than "PALENON PERFORMANCE" brand
Exchanges
Return the item and place a new order once approved.
Refunds
Approved refunds are issued to the original payment method. A restocking fee is 20% will be applied. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.
Cancellations
Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom, specialized items or pre-order items canceled within their lead time are also subject to this fee. Will also incur a 10% restocking fee.
Damaged or incorrect items
Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.
Disputes / Chargebacks
Our legal team is fully prepared to take stringent action against you for filing a baseless claim and initiating a fraudulent chargeback. This will lead to civil or criminal proceedings, which would require you to engage with our attorneys in our jurisdiction.
It is crucial to understand that filing a false chargeback is a serious offense, punishable by substantial fines or imprisonment. Potential penalties for fraudulent chargebacks can include one to three years in prison and fines ranging from $1,000 to $10,000. We treat all chargebacks with the utmost seriousness, regardless of the amount, as this is classified as a felony.
We will compose all necessary information to send your account to a collections agency and request that you be served once our lawyers organize the evidence and file a case against you.
Boost your BMW's performance with the Palenon Performance Version-I 4.5-inch B58 Downpipe. Designed for 2020 and newer Supra 3.0T models and 2016-present BMWs, including the M340i, M440i, M240i, X5 40i, Z4, 440i, 540i, 640i, and 740i, this high-flow downpipe replaces the restrictive OEM catalytic converter to enhance turbo efficiency. Its smooth radius bends and 4.5” 304 Grade Stainless Steel construction provide faster spool times, increased power, and a bold exhaust sound. Installation is straightforward, and it works seamlessly with both factory and aftermarket exhaust systems.
Explore
Features
- Faster Spool
- Less Restriction
- Increased Power
- Aggressive exhaust note
- Easy install
- Fits Right or Left Hand Drive Vehicles
- Fits Factory and Aftermarket Exhaust
Our racing-grade downpipes are expertly crafted from premium stainless steel, using precise and standardized bending techniques to ensure optimal performance and thrilling exhaust note. Our downpipe pricing is U.S. market guaranteed. With an unwavering commitment to both price and quality, we adhere to a "customer-first" standard, ensuring that our products exceed expectations without compromise.
Profile
The installation of catless downpipes will result in an inevitable check engine light (CEL) as the DME will detect that emissions are not being burnt up by the OEM catalyst. To remove this CEL without having to tune it out we offer the CEL Delete Kit which is comprised of O2 sensor spacers specifically calibrated to comply with BMW's parameters for a functioning catalyst. These install into the post-catalyst O2 sensor bungs, effectively removing the CEL that would otherwise appear.
Purchase Link: Cel Delete Kit
Fitment
- 2019-2024 G20, G22 & G26 BMW M340i & M440i & xDrive
- 2019-2024 F22 BMW M240i & xDrive
- 2021-2024 G42 BMW M240i & xDrive
- 2019-2024 G05 BMW X5 40i & xDrive
- 2019-2024 G29 BMW Z4 M40i
- 2019-2024 G14/G15/G16 840i & xDrive
- 2016-2024 F22/F23 BMW M240i & M240i xDrive
- 2016-2019 F30/F31 BMW 340i & 340i xDrive
- 2016-2019 F32/F33/F36 BMW 440i & 440i xDrive
- 2016-2024 G30 BMW 540i & 540i xDrive
- 2016-2023 G32 GT BMW 640i & 640i xDrive
- 2016-2022 G11/G12 BMW 740i & 740i xDrive
-
2020+ Supra A90/A91 3.0T
Why Us
At Palenon Performance, we take immense pride in our Exhaust products and believe they are the ultimate choice for discerning customers. Our commitment to excellence begins with the meticulous selection of top-grade Stainless Steel Piping, ensuring unrivaled strength and durability. Our state-of-the-art manufacturing techniques guarantee precise and consistent parts that elevate vehicle performance to new heights. With a team of highly skilled engineers and designers, we continually innovate and push boundaries to deliver cutting-edge designs that seamlessly integrate with any vehicle. Furthermore, our rigorous testing and unwavering dedication to customer satisfaction make Palenon Performance the trusted brand for superior Exhaust products.
Video
This downpipe was my first purchase for my car and is well worth the money.
Great product! The quality is excellent, and shipping was super fast. I'm so pleased!
Amazing piece
Good quality and sounds 👌 👍
Great sound, good quality
Handling
Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.
For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.
Expedited shipping applies only once the item is ready to ship.
Return
You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.
To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.
You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders
Non-returnable items:
- Burger Motorsports (BMS) products
- Used items
- Air Intakes
- Hazardous materials, flammable liquids, or gases
- Discounted items and gift cards other than "PALENON PERFORMANCE" brand
Exchanges
Return the item and place a new order once approved.
Refunds
Approved refunds are issued to the original payment method. A restocking fee is 20% will be applied. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.
Cancellations
Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom, specialized items or pre-order items canceled within their lead time are also subject to this fee. Will also incur a 10% restocking fee.
Damaged or incorrect items
Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.
Disputes / Chargebacks
Our legal team is fully prepared to take stringent action against you for filing a baseless claim and initiating a fraudulent chargeback. This will lead to civil or criminal proceedings, which would require you to engage with our attorneys in our jurisdiction.
It is crucial to understand that filing a false chargeback is a serious offense, punishable by substantial fines or imprisonment. Potential penalties for fraudulent chargebacks can include one to three years in prison and fines ranging from $1,000 to $10,000. We treat all chargebacks with the utmost seriousness, regardless of the amount, as this is classified as a felony.
We will compose all necessary information to send your account to a collections agency and request that you be served once our lawyers organize the evidence and file a case against you.

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