Back in mid-January, we brought you SpeedART\'s preview of the aftermarket program for the new 2012 Porsche 911. The SP91-R, as it has been dubbed, is based on the 991-era Carrera S and exhibits a slick exterior paired to an interesting interior along with a power upgrade.Starting on the exterior, SpeedART has added a body kit to freshen up the new 911. The kit includes a new front spoiler, side skirts, rear wing attached to the original rear spoiler and rear diffuser.It sits on a set of matte gray 21-inch LSC forged wheels.The interior features plenty of customizable pieces, however the standard SpeedART created for their program is unique, bright, and well, green. Leather and Alcantara are found in an unconventional black and green combination though they do look quite comfortable.Added power comes in the form of a revamp of the Carrera S\' ECU, good for an extra 25hp and 15 lb-ft of torque. That means a solid 425hp from the 911\'s 3.8-liter inline-6.A sports exhaust system complete with sport-catalytic converters and manifolds has been affixed. An adjustable sport suspension allows the Porsche to run smoother on the road or track. In terms of the latter, SpeedART is developing a lightweight titanium sport exhaust system for increased functionality.No pricing information has been released as of yet for the SpeedART Porsche 911 SP91-R.