EFT Racing Clutches are direct replacement clutches. It does not require modifications in order to fit on your vehicle. These clutches are designed for the individual whose goal is to have a streetable clutch while still maintaining the high performance capabilities of a performance clutch. These clutches are designed to be used mainly on the street with occasional track usage. All EFT Racing clutches require a 500 mile break in period. EFT Racing Clutches only consist of the very best materials. Increased clamp loads give the necessary capacity to support the increase in torque made from modified engines. All of our discs have a high capacity sprung center dampers to reduce shock on the drivetrain. EFT Racing Stage 2 disc features carbonized friction material to have higher burst strength and heat tolerance. Professional installation is recommended.This Complete Clutch Kit and Flywheel package includes: - EFT Racing 4140 Chromoly Solid Flywheel (19 lbs) - EFT Racing Stage 2 HD Pressure Plate - EFT Racing Stage 2 HD Carbon Clutch Disc - Pilot Bushing - Alignment Tool - Installation GuideVehicle ApplicationFits 2007 - 2008 Infiniti G35 (3.5L DOHC 6cyl VQ35HR)Fits 2009 - 2013 Infiniti G37 (3.7L DOHC 6cyl VQ37VHR)Fits 2007 - 2009 Nissan 350Z (3.5L DOHC 6cyl VQ35HR)