GT1R 12MM MAIN KIT SET OF 16 STUDS AND NUTS NISSAN GTR R35

High-torque VR38DETT builds often experience "main cap walk," where extreme combustion forces cause the main caps to move against the block, leading to bearing failure and crankshaft damage. Factory main bolts lack the tensile strength and clamping force required to keep the bottom end stable under heavy boost. The GT1R 12mm Main Stud Kit is engineered to solve this structural bottleneck by replacing the OEM bolts with high-precision studs.