Heffner is going for a factory look and feel with their twin turbo system. They want customers to get more than what the standard car offers but without feeling like they had visited a backyard garage mechanic to achieve that.At the moment the car is said to run 6PSI and an 11.8 to 1 air/fuel ratio. It kicks out 536 rear wheel hp but should attain about 600rwhp after drinking 100 octane fuel. Heffner reckons these changes will give it a quarter mile time in the high 10 second range.
