[NoMoGMPG]

Check your S/C certification for manufacturer compliance. In order for the SEMA act to apply, the component has to pass the manufacturer's maximum specification. If it doesn't say approved for use by GM and will not void your warranty, it most certainly will. This has to do with powertrain components which increase the hp/torque. Don't blame GM for covering its own ass. Warranty costs are high as it is and ALL manufacturers are cracking down on modifications. Most people don't think about the whole picture when they add power, that the u-joints might snap, the trans might burn up, that the axles are too small. If you're going to blame someone, blame yourself for short-sightedness.