SPEC SF503F-2 2011 Ford Mustang V8 5.0L / 11-17 Ford Mustang V6 3.7L SPEC Stage 3+ Clutch Kit Are you looking for a clutch kit that can handle the power and torque of your heavily modified street or race engine, while still offering smooth and comfortable engagement? If so, you should check out the SPEC SF503F-2 Stage 3+ clutch kit. This clutch kit is designed for extreme street driving and heavy drag strip use, with a full-faced carbon metallic clutch disc that offers unparalleled life, friction coefficient, and drivability characteristics in one single package. The SPEC SF503F-2 Stage 3+ clutch kit also comes with a high clamp pressure plate, bearings, and an alignment tool for easy installation. Key Features: Full-faced carbon metallic clutch disc High clamp pressure plate Bearings and alignment tool included High torque capacity Smooth and comfortable engagement Long life Benefits: Ideal for extreme street driving and heavy drag strip use Compatible with heavily modified street and race engines Improves performance, safety, and strength Reduces clutch chatter and vibration Easy to install with basic tools Product Specs: Part Number: SF503F-2 Disc Diameter: 11 inches (279 mm) Input Spline Quantity: 23 Input Shaft Diameter: 1.031 inches (26.19 mm) Pressure Plate Style: Diaphragm Disc Material: Carbon metallic Disc Style: Full-faced Hub Style: Sprung Throwout Bearing Included: No Pilot Bushing Included: Yes Counterweight Assist: No Mounting Hardware Included: No Install Difficulty Level: The installation of the SPEC SF503F-2 Stage 3+ clutch kit is rated as moderate, and it should take about 4 hours to complete. You will need to remove the transmission, the old clutch and flywheel, and install the new clutch kit following the instructions provided by SPEC. You will also need to adjust the clutch pedal and bleed the hydraulic system after the installation. You may need some special tools such as a transmission jack, a torque wrench, and a clutch alignment tool. Vehicle Fitment: The SPEC SF503F-2 Stage 3+ clutch kit fits the following vehicles: Ford Mustang V8 5.0L (2011 only) Ford Mustang V6 3.7L (2011 - 2017) If you have any questions about this product or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.