Top Secret Increases Size 2-to-4 Inches With Its Latest 350Z Wes Allison Photographer Britton Powell Writer May 06, 2004 You're Top Secret, and you've just acquired a brand-spankin'-new Fairlady Z33.

Nismo 350Z S1. With their S1, ... Fitted with an Infiniti Q45’s 4.5-liter V-8, the Top Secret boys have added twin turbos to generate 700 horsepower.

This is the secret of the 350Z GT-S concept: a supercharger that boosts the car's power from around 300bhp to 382bhp. It also drops the 0-60mph time from an already quick 5.8sec to 4.8sec.