they my look the same but there not interchangeable. if u really like that plain looking valve cover on a bp u can use a 1st gen kia valve cover and grind off the kia symbol. in doing that it will look like the b6de valve cover and fit on a bp. but it won't fit on the bp due to the black plate between the cam gears and cly head.
(12.4@118@18psi) 92 MX-3, KIA (BP-DE)Swap, Electromotive TEC II Standalone, 8,200 Rev Limit, Custom Intake/Exhaust Manifold, 1,000cc PTE Injectors, Custom Fuel Rail, Aeromotive FPR, 80MM Holley TB, MSD 8.5MM Wires, NGK V-Power #8, SC6262 Turbo, 3 in. DownPipe, Tial WG/BOV, 600HP PTE FMIC, 2.5IN Intercooler Piping, EQUUS/Autometer KIA G-Series Tran, Extreme ACT Clutch, Built BP in starting process.