SEAT LEON ATEC TSi TDi KL 5F FRONT REAR BIG BRAKE DISC UPGRADE CONVERSION KIT October 9, 2025 admin seat atec, brake, conversion, disc, front, leon, rear, seat, upgrade FOR CONVERTING YOUR FRONT REAR BRAKES. 340MM DIAMETER FRONT BRAKE DISC CONVERSION. 310MM DIAMETER VENTED REAR BRAKE DISC CONVERSION. 2 X NEW FRONT […]