Shop Buick Century Exhaust Manifold Heat Shield (Lower). 2008-11. Exhaust Manifold Heat Shield - Barrier, Bent, Buzzing - OEM Buick Part # 12581806

Shield. Heat. Exhaust Manifold. Insulator.
A Heat reflective barrier to prevent items from coming in contact with the hot Exhaust Manifold.

Exhaust Manifold Heat Shield

Fits CTS

2008-11.
Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your may be a bent or rusted exhaust heat shield.