SharkWerks has partnered with Evolution Motorsports to deliver a U.S.-tuned version of the Porsche 997 GT3. The engine conversion kit adds 0.3 liters to the engine's displacement and provides and additional 87 horsepower to the production 997 GT3. The 3.9 liter now delivers 502 hp and 355 lb-ft of torque (480 Nm) over the production 3.6 liter's 415 hp with the new piston and cylinder kit developed by the Freemont, CA and Tempe, Arizona-based tuners (SharkWerks and Evolution Motorsports, respectively). Interesting to note is the EVOMSit software kit provided by Evolution Motorsports which can calibrate the engine for either 91 or 93 octane fuel. Press Release Features: SharkWerks/EVO Piston & Cylinder Kit - 3.9L SharkWerks/EVO Head Stud Kit SharKWerks/EVO Spec Intake & Exhaust Camshafts Tuning: EVOMSit Engine Software for 91 Octane or 93 Octane Exhaust: SharkWerks Center Exhaust Kit (SharkWerks/EVO Light-Weight Cup-Style System also available at extra cost) Top End Build Kit: -Cylinder Base Gaskets -Head Gaskets -Cam Tower Gaskets Billet Lightweight Crankshaft Pulley Lightweight RS Flywheel Conversion (not required for RS model cars) Option 2 (for higher mileage cars we also provide a bottom end build at additional cost) Balance Rotating Assembly: -Crankshaft -Flywheel -Rods -Pulley Bottom End Rebuild Kit: -Main Bearings -#8 Nose Bearing -Rear Main Seal
