The SEMA show in Las Vegas has become a great arena for manufacturers to reveal new performance upgrades for their cars. SEMA is typically the domain of aftermarket tuners, but the OEMs have been releasing in-house alternatives that make their cars faster, while still retaining a warranty. At this year's show, GM has announced an upgrade for the C7 Corvette Z06 that will help it go a second faster around a racetrack. Depending on the track, this is a huge bump in speed that usually doesn't come cheap.

They say to shave off one second per lap in Formula 1, it would cost around 10 million pounds ($13.2 million). GM has managed this feat with a tweak to the Magnetic Ride Control suspension available as a download at any Chevy dealership. The cost is just $350, which is shockingly good value for such a meaningful upgrade. The simple download can be installed into the car's ECU without voiding the warranty, and sounds like one of the best value upgrades we've ever seen from a manufacturer. Chevy says the simple tweaks to the magnetorheological suspension dampers allowed a 2016 Z06 to lap GM's 2.9-mile Milford Road Course over a second faster than the original setup.

Right now, GM only offers the upgrade on the 2014-2016 Corvette Stingray Z51, 2016 Stingray, and 2015-2016 Corvette Z06, although the tweak will soon be available on Grand Sport models as well. If you own a Corvette that qualifies for the upgrade, we suggest you get over to the dealership with $350 in your pocket. It may not be as awesome as the free upgrades that you'd get from McLaren, but $350 does sound like a fantastic price for such a meaningful upgrade.