Haltech Firewall Rubber Wiring Grommet - 51mm (2in) OD 28mm (1-1/8in) ID – High-performance automotive part designed for precision, reliability, and optimal compatibility. Ideal for tuning, upgrades, and motorsport applications. Supports advanced engine management strategies. Keywords: haltech, firewall, rubber, wiring, grommet, -, 51mm, (2in), od, 28mm, (1-1/8in), id.