The M57 diesel in the E70 X5D is a fundamentally capable engine wrapped in an aftertreatment system designed to age badly. DPF clogging, SCR failure, and the associated fault codes are a known progression on this platform. This kit removes the restrictive factory exhaust section with a free-flowing 3" stainless replacement.
304 stainless steel, TIG welded throughout. Direct bolt-on with one cut required. All hardware included.
Replaces OEM: 18308509753
What's Included
3" 304 stainless downpipe and midpipe — TIG welded
All mounting hardware
Requires one cut to factory exhaust during installation
Important Notes
For off-road and competition use only. Not for use on public roads where emissions regulations apply.
ECU tuning is required after installation to delete fault codes and optimize fueling. Tuning sold separately.
Orders ship within 5-7 business days if not in stock. Free shipping on Canadian orders over $250 CAD. Flat rate available for smaller orders and US/international destinations.