Z-Fever has been in business since 1988 building, racing, and tuning Datsun, Nissan, and Infiniti vehicles. We bild forged internal performance engines, we rewire harnesses for motor swaps like the SR20DET, VG30DE(TT), RB20/25/26, VQ35DE, VQ35HR, VQ37VHR, VK45DE and VK56DE. We also tune most Nissan and Infiniti ECU's as well as tune AEM, Haltech, APex-i, Greddy E-manage, HP Tuners, UpRev Osiris, and ECUTek. We also design, engineer, and manufacture tons of custom niche products to assist in these swaps. Our website address is www.zfever.com we are also on instagram @zfever or facebook @zfever