B46/B48 Stainless Steel Downpipe Upgrade [Race Downpipes]

B46/B48 Stainless Steel Downpipe Upgrade [Race Downpipes]

B46/B48 Stainless Steel Downpipe Upgrade [Race Downpipes] is a freer-flowing exhaust-side upgrade that reduces post-turbine backpressure and adds exhaust-flow capacity. It is intended for performance-focused builds where the fuel system, airflow or drivetrain must support demands beyond the factory configuration.

The product is supplied as an application-specific Spool configuration. Check the engine version, body style and selected package contents before ordering. Correct sizing and professional installation are particularly important for fuel-system and engine-management changes.

Technical details

• Manufacturer lifetime warranty subject to product-specific warranty terms
• Manufacturer SKU or variant code depends on the selected configuration

Available options

• B46, B48

Examples of compatible vehicles

• BMW 3-series (model years 2016–2024)
• BMW 4-series (model years 2016–2024)
• BMW X3 (model years 2018–2024)
• BMW X4 (model years 2018–2024)

Race downpipes are intended for closed-course and competition use. Check road legality and local regulations before installation.