Scorpion 5" Downpipe with High-Flow Sports Cat - BMW B58

This is the largest downpipe Scorpion makes for the B58, a full 5-inch pipe built for owners chasing big flow on a tuned car. It swaps out the restrictive factory section behind the turbo and pairs it with a high-flow sports catalyst, so the turbo has far less backpressure to push against.

What you get

• 5-inch diameter downpipe, Scorpion's biggest option for these cars.
• Dual 200-cell sports catalyst that flows much better than the factory cat.
• T304 stainless steel construction made to handle harsh conditions.
• CNC mandrel-bent tubing for smooth gas flow and sharper throttle response.
• Lighter than the OEM part it replaces.

Good to know

• Sold for motorsport use only. It is not designed to meet emissions standards, is not CARB compliant, and cannot be sold or used in California or any other place where the law bans it.

Brand: Scorpion Exhausts · Part #: SBMX102

For off-road / competition use only. Not legal for use on public roads in the United States, including California.

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.