Exhaust Fumes in Cabin - Holes in Exhaust Pipe and Downpipe Flange Gasket Leak

Exhaustintermediate✓ OP Confirmed

Problem

Strong exhaust fumes entering the cabin both while driving and while stationary. The smell persisted regardless of whether the catalytic converter was installed or removed.

Exhaust fumes smelled inside the cabinFumes present both while driving and when stationarySmell persisted after reinstalling catalytic converter

Root Cause

Multiple holes had developed in the exhaust pipe over time, allowing exhaust gases to escape and enter the cabin. Additionally, the turbo downpipe flange gasket was leaking.

Confidence

Moderate confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted June 2021 on SupraForums.com