Infiniti QX80 R-Spec Specs, Engine, and Release Info: Full Breakdown
Infiniti QX80 R-Spec Specs, Engine, and Release Info: Full Breakdown Infiniti QX80 R-Spec Specs, Engine, and Release Info: Full Breakdown Luxury meets insanity. The Infiniti QX80 is already one of the most opulent full-size SUVs on the market but for SEMA 2025, Infiniti has ripped up the rulebook. Meet the QX80 R-Spec: a one-off, track-inspired monster that swaps refinement for raw aggression powered by a tuned Nissan GT-R engine making 1,000 horsepower. Yes, you read that right. This full-size luxury SUV now packs the heart of a supercar. At its core lies the legendary Nissan GT-R 3.8L twin-turbo V6 (VR38DETT) not just borrowed, but comprehensively re-engineered: Garrett G-series turbochargers for massive boost JE forged pistons Boostline connecting rods ARP rod bolts for extreme durability ETS exhaust manifolds Full engine management via a MOTEC ECU for precision tuning Infiniti didn’t stop at internals. The build includes: Custom high-flow fuel system Upgraded intake setup ...