The Lethal Performance 2013 Shelby GT500

Lethal Performance runs a 9.77 quarter mile with the 2013 Ford Shelby GT500 Mustang

The Mustang tuning experts at Lethal Performance took their 2013 Shelby GT500 to the dragstrip of Palm Beach International Raceway with the hopes of getting into the 9-second range and the result – a stunning 9.77 second quarter mile time with a trap speed of 148.8 miles per hour.

The talk of the performance world last month was the team of Evolution Performance when they were the first tuning shop to break into the 9-second range with the 2013 Ford Shelby GT500 Mustang but after the video below debuted this weekend - it is Lethal Performance who appears to be the top dog in the Mustang tuning shop world. Their 9.77 at 148.8 miles per hour bests the time turned in by the Evolution Performance GT500 last month of 9.95 at 142 miles per hour. Unfortunately, as was the case with the Evolution Performance Mustang that dipped into the 9-second range – the full details of this 9.77 run are being withheld for publishing in an upcoming issue of 5.0 Mustang & Super Ford Magazine.

While the folks from Lethal Performance are understandably tight-lipped about the modification list of their 9-second 2013 GT500 (as were the people at Evolution Performance), the few bits of advice offered by both groups give us a very rough idea as to what might be done to these super muscle cars.

First off, the Evolution Performance 2013 GT500 Mustang that ran a 9.95 claimed to have been powered by the stock engine, the stock supercharger, the stock 6-speed manual transmission and the stock clutch…with only “basic bolt ons” used to get into the high 9-second range. Basic bolt-ons generally mean that the car has some sort of enhanced air intake system, a better flowing exhaust system, perhaps higher ratio gearing in the rear end, fuel system upgrades and an engine computer tune that allows the GT500 to make the most of these modifications. The Evolution video does not mention stock cylinder heads so perhaps those have been altered in some way but only time will tell.


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wow i say by the time the nmra rolls into bowlingreen this year this monster will be in the 8's these guys have been building and racing 2500+hp 10.5 outlaw mustangs for years so this gt500 is a play toy to them.[ to bad the zlnone is slower but faster because of its smooth easy ride]