I recently installed the Angel Eyes Dual Halo/Projector Beam replacement headlight units offered by Z3 Solutions on my 1998 2.8 roadster. The installation was a straight forward bolt-in; the only wiring mod is to tap the halo hot leads into the parking light leads on each side and corresponding ground wires. Four taps, 10 minutes tops. Aiming and adjustment require time and patience but the results are worth it. You can see my installation on the Z3 Solutions web site. Stunning appearance and vastly improved safety and performance for $349.95 -- huge bang for the buck. This is a shameless but unprompted and sincere plug for this product and Z3 Solutions' expertise and service.