2 inch 1600ºF Pyrometer Gauge - Indicates Exhaust Temperature of Any Engine - Same EGT used in Aircraft - Easiest way to Diagnose Lean or Rich Fuel Mixture - A Must for Supercharged Engines - Waterproof Fronts Help Prevent Fogging - Requires a 2 1/16 inch Cutout; 23/8 inch OD - Standard Rim Color Matches Face/Dial - For That Custom Look, Add a Decorative Powdercoated Color Rim for Just $10 - Available in 8 Colors 3-GMPY$73.80 Face Color: BlackWhite Decorative Powdercoated Colored Rim - Available in 8 Colors For that Custom Look, Add a Decorative Powdercoated Color Rim for Just $10 Note: Standard Rim Color Matches Face/Dial - Order Decorative Powdercoated Color Rim ONLY If You Want a Contrasting Rim Color. 3-PY216$10.00 Rim Color: WhiteYellowRedPurpleBlueTealChromeBlack Decorative Powdercoated Colored Rim - Available in 8 Colors For that Custom Look, Add a Decorative Powdercoated Color Rim for Just $7.25 Note: Standard Rim Color Matches Face/Dial - Order Decorative Powdercoated Color Rim ONLY If You Want a Contrasting Rim Color. 3-CR216$7.25 Rim Color: WhiteYellowRedPurpleBlueTealChromeBlack