BMW 840Ci Exhaust Parts

CARB Compliant Direct-Fit Catalytic Converter

Positon 18 in the diagram - Diagram may not match your specific vehicle

Position 21 in the Diagram

Used for expanding mild steel exhaust pipes to make perfect exhaust seals with smaller diameter piping.

5 Wire (Type LSU) Wide Band Sensor for Racing Applications

M18x1.5 thread size, used for cleaning and fixing damaged oxygen sensor bung threads

An easy upgrade for anyone tired of replacing drooping rubber hangers, or having issues with a low-hanging exhaust.