His does not run a RB26, it's a RB25 with his custom manifold for the twins. He's not technically associated with Z Fever, but he does get contracting jobs through Z Fever for custom fabs. He also tunes using Z Fever's in house dyno. Hybrid Performance is no longer in business and has been that way for close to 2 years if not more. One of the cleanest Zenkis around.