That's where Fabspeed Motorsport come in with an exhaust tune meant to build on the car's factory Sport exhaust, while also enhancing the presence of the twin turbos. <br /> <br />Thanks to the new Sport Headers, Sport Cats, Cat Bypass Pipes and Deluxe Dual Style Tips, the C4S gained an extra 32 WHP and 2 lb-ft (2.7 Nm) of torque, where 25 WHP can be felt upwards of 5,000 rpm. <br /> <br />According to Fabspeed, the turbo noise now "compliments the intense burbling and snarling of the engine," and if you're not a naturally-aspirated purist, you might end up agreeing with them after watching the video. <br /> <br />The team also announced that they'll be looking to unlock additional power gains as soon as possible through ECU tunes. <br /> <br />But if you're wondering just how fast the 911 Carrera 4S is even when stock, look no further than its sub 4-second 0-100 km/h (62 mph) acceleration time. It will also max out at 305 km/h (190 mph) which makes it a genuine supercar.
