Infiniti have fitted a 1,000 hp GT-R engine into the QX80 for SEMA and called it the R-Spec Concept. The 3.8L twin turbocharged V6 engine has undergone a few modifications to bumper the power levels up to 1,000 hp with Garrett G-series turbochargers, new exhaust and intake manifolds, upgraded fuel system, improved pistons and connecting rods as well as better cooling and an electronic locking rear differential.
