Buy OEM Lexus Part # 2558731020 (25587-31020). Exhaust Manifold Heat Shield. Exhaust Manifold Heat Shield - Repair or Replace A tinny ticking, buzzing, or rattling noise that sounds

INSULATOR, MANIFOLD CONVERTER, NO.2

Fits LC 500h, LS 500h

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