Naturally Aspirated Carrera Evolution
The 99 Model year featured a 3.4L engine producing 296 bhp. The 2000 and 2001 model years received a slight increase in horsepower to an even 300 bhp while retaining the same figures for torque produced. In addition, Porsche made many changes to the 3.4-liter unit over its production lifespan, so the last of the last of these 3.4L engines (made in 2001) have improved reliability.
The 2002+ cars received a 3.6L engine which provided an extra 15 bhp (11 kW) of horse power (taking output to 315 bhp or 320 ps) and an additional 15 lb.ft of torque (increasing from 258 to 273). The inclusion of Variocam Plus (as opposed to Variocam on the earlier 996) improved power delivery through the rpm range. The headlights on the 996 Carrera also adopted the turbo headlights of the MK1 iteration. Seat belt pretensioners were also added and the Tiptronic in 2000 was modified to allow it to enter manual mode by clicking the steering wheel mounted buttons.
Updates also included an updated front bumper to decrease front end lift and the addition of a glove box. The "MK2" 996 gained 55 lbs. compared to the "MK1" in this facelift.
Read more about this topic: Porsche 996
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