Buy 2011 Lexus GS 350 Exhaust Manifold Heat Shield. Exhaust Manifold Heat Shield - Repair or Replace Ticking, Tinny, Rattling - OEM Lexus Part # 1716731160 (17167-31160)

INSULATOR, EXHAUST MANIFOLD HEAT, NO.1

Fits GS 350, IS 350, LC 500h, LS 500h, RC 200t, RC 300, RC 350

Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your 2011 Lexus GS 350 may be a bent or rusted exhaust heat shield.