This may be Audi's first year at SEMA, but that doesn't mean other tuning houses haven't worked up some four-ringed hotness just for the Vegas show. Stasis, for example, shows off its Signature Series S4 and S5 which get by with 'just' 410 horsepower and 370 pound-feet of torque from their supercharged V6s, otherwise normally rated at 333 hp and 344 lb-ft.Stasis says the 25 percent boost in power comes from nothing more than an ECU tune and its...
