The car's interior, aside from being totally reassembled from the floorpan up with the factory innards and upholstery, sports an array of engine-monitoring electronics so Nufable can keep tabs on his car's high-strung engine. Two new gauges are mounted in the cabin, a 60mm boost meter and a 46mm EGT meter, both from HKS. Another very trick addition is the HKS Electronic Valve Controller IV (EVC IV), mounted directly below the Sony stereo head unit. The EVC IV allows boost pressure to be adjusted from inside the cabin (and, apparently, while the car is moving). It features four settings: Off (10-psi default setting), Low (15-psi), High (20-psi) and Scramble (approximately 21.5-psi). Nufable relates that normal everyday driving takes place at the low setting, but when necessity calls for him to flex his GT25's mechanical muscles, he switches to high or scramble with absolutely no noticeable side effects.

While Ryan Nufable's black Eclipse has not as yet seen a legitimate dyno run, he has computed a makeshift horsepower figure based on his best quarter-mile trap speed, 104 mph. Running turbo boost at its maximum setting via the EVC IV (about 20.31 psi), Nufable rates his power at approximately 325 hp. But is he satisfied? No. Future plans include replacing the turbo yet again with a low-friction ball-bearing type, as well as hi-po cams and perhaps a few other choice internal engine mods. With the full fury of the HKS parts warehouse behind him, it wouldn't be too far off to say the sky's the limit.