MSD Ignition Ignition Control Features: Runs Carb LS2/7 Eng w/out Complicated EFI Hardware Map Timing Curve Using Pro-Data+ Software Programmable Two-Step Rev Limiter Direct Plug-In to Factory Components Programmable Via a PC Easy Installation Height: 4.00 Width: 6.00 Length: 10.00 Weight: 3.80 lbs Fitment: 2008/Chevrolet/Trailblazer/SS Sport Utility 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated^^2007/Chevrolet/Trailblazer/SS Sport Utility 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated^^2007/Chevrolet/Corvette/Base Coupe 2-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated^^2007/Chevrolet/Corvette/Base Convertible 2-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated^^2007/Cadillac/CTS/V Sedan 4-Door/6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated^^2006/Pontiac/GTO/Base Coupe 2-Doo...