Spool Performance B58 5 Inch Stainless Steel 200 CELL Euro 5 Catted Downpipe Upgrade [Race Downpipes] SP-B58-DP-5

Spool 5-Inch B58 Downpipe 200 CELL Catted – Euro 5

Spool Performance designed the 5-inch B58 Downpipe to solve the problems other downpipes fail to address. Engineered in-house with precision craftsmanship, this downpipe delivers real performance gains, unique tone, and unmatched durability.

Unlike mass-market rebranded downpipes, every Spool pipe features CNC-machined welded branding, a large flexible section for easier installation, and thick 2mm 304 stainless steel construction for long-lasting reliability.

Key Features

• 200 CELL Euro 5 Catalytic Converters included, high-quality OEM-grade performance cats.
• 5-Inch Diameter: Reduces backpressure, improves turbo spool, and creates a deep, aggressive exhaust tone.
• Largest Flex Section on the Market: Easy alignment for stress-free installation.
• Premium 304 Stainless Steel Construction: 2mm thick walls provide superior strength over standard pipes.
• Lifetime Warranty: Built to last under high-boost conditions.
• Exclusive Design: Only Spool offers this unique 5-inch B58 configuration.

Performance Benefits

• Faster turbo spool and smoother airflow
• Noticeable horsepower and torque gains with proper tuning
• Rich, aggressive sound unique to this 5-inch design
• Long-lasting performance even under high-load, high-boost conditions

Fitment

BMW Gen 1 & Gen 2 B58 2 Port/6 Port Engines:

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

Non-BMW Models:

• 2019+ Toyota Supra (A90/A91)

Legal Disclaimer

This product is intended for closed-course or off-road use only. It modifies emissions equipment and is not EPA or CARB compliant. Use on public roads is prohibited. Buyers assume full responsibility for legal compliance.

Note: 'New' merchandise may be returned for exchange or refund within 15 days from the date of shipment. 'New' merchandise must be unused and free from installation or mounting damage. Installation or modification of parts waives your right to returns, refunds, or exchanges.

The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.