Buy OEM 1984 Mazda Part # PYDN133K0 (PYDN-13-3K0). Exhaust Heat Shield (Lower). W/O 2.5 LITER TURBO. Exhaust Manifold Heat Shield - Repair or Replace A tinny ticking, buzzing, or

Exhaust Heat Shield. Insulator, Exhaust.
California Emissions. Exhaust Heat Shield. Included with: Manifold w/converter.

Exhaust Manifold Heat Shield

Fits CX-30

W/O 2.5 LITER TURBO.
Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your 1984 Mazda may be a bent or rusted exhaust heat shield.