B58 5 Inch Downpipe Upgrade [Race Downpipe]

Introducing the New 5-Inch SPOOL B58 Downpipe!

Why Settle for the Same Rebranded Downpipes?

Let’s face it—most downpipes on the market look the same. They’re just rebranded versions of the same old design with a small, rigid flex section and a laser-engraved logo slapped on. We’re tired of it too. That’s why we created something better. The SPOOL 5-Inch Downpipe is our own design, engineered in-house and quality you can trust. And unlike others, our logo is CNC machined and welded on, not laser engraved.

Why Choose the 5-Inch SPOOL B58 Downpipe?

• Unique, Deep Exhaust Tone: The larger 5-inch diameter creates a richer sound that stands out from the crowd.
• Easy Installation: Our flexible design makes alignment with your exhaust simple and stress-free—no more fighting with rigid downpipes.
• Real Performance Gains: Reduced backpressure means faster turbo spool, more power, and smoother flow. Pair it with a proper tune, and you’ll feel the difference and see significant HP & TQ gain.
• Built to Last:  Made from 304-grade stainless steel with a thicker 2mm design for unmatched strength and durability compared to the standard 1 and 1.5mm options in the market.
• Lifetime Warranty: Like all SPOOL products, this downpipe is covered by our lifetime warranty

What Makes It Special?

• Largest Flex Section on the Market: No one else offers this kind of flexibility on their 5-inch downpipe. It’s designed for easy installation and contributes to the unique sound.
• Exclusive Design: This is the only 5-inch B58 downpipe that looks like this, giving you a product that’s truly one of a kind and not some rebranded pipe that you see on the market.

Reach out to us at Customer_service@spoolperformance.us for lead times.

This item fits the following BMWs:

• 2016+ F22/F23 BMW M240i & M240i xDrive
• 2016+ F30/F31 BMW 340i & 340i xDrive
• 2016+ F32/F33/F36 BMW 440i & 440i xDrive
• 2016+ G30 BMW 540i & 540i xDrive
• 2019–2023 G20/G22/G26 BMW M340i & M440i & xDrive
• 2019–2022 F22 BMW M240i & M240i xDrive
• 2021–2023 G42 BMW M240i & M240i xDrive
• 2019–2023 G05 BMW X5 40i & X5 xDrive40i
• 2019–2023 G07 BMW X7 40i & X7 xDrive40i
• 2019–2023 G29 BMW Z4 M40i
• 2016+ G11/G12 BMW 740i & 740i xDrive
• 2019–2023 G06 BMW X6 40i & X6 xDrive40i
• 2017+ G01 BMW X3 M40i
• 2018+ G02 BMW X4 M40i
• 2019–2023 G14/G15/G16 BMW 840i & 840i xDrive
• 2022+ G70 BMW 740i & xDrive

Non-BMW Models:

• 2019+ Toyota Supra (A90/A91)