STEP 5 OF 5

2018 GMC Terrain — Exhaust

3 OEM parts available. Click any part for details and fitment info.

CPP-39008
Catalytic Converter
EPA-compliant direct-fit catalytic converter
MF40354
Muffler
OE-style steel muffler with inlet/outlet
OS5076
Upstream O2 Sensor
Air/fuel ratio sensor, upstream position