i agree valentine is the way to go. I had a cobra and i got tagged from the rear which sucked and the valentine would have warned me. Cobra's take 3 seconds to register radar that is being turned off and then back on. I am saving up to buy the valentine. But first i am doing a cam swap.
2004 EXC Silverado 6.2L
Mods:
6.2L L92, Ported and Polished stage 3 heads, 95mm Throttle Body, 100mm MAF, NA, Pacesetter LT Headers, Magnaflow X-Pipe Muffler, Electric Fans, 160* thermostat, 2" Drop Shackles, Hellwig Sway Bars Front and Rear, Monroe Reflex Shocks, NGK Spark Plugs, AMW Oil Catch Can, 17"x10" wheels on Kuhmo Tires.