Interesting Facts About the Infiniti FX50 S51
The Infiniti FX50 debuted as part of the FX lineup that ran from 2002 through 2013. Its second generation, known internally as the S51, arrived for the 2009 model year and continued to evolve until the end of the series.
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Second‑Generation Launch (S51)
The FX entered its second generation (S51) in the 2009 model year, offering both the FX35 and FX50 trims. This redesign marked a fresh chapter for the model after its initial launch in the early 2000s.
Engine Displacement Boost in 2013
For the 2013 model year, the FX50’s V6 engine grew from 3.5 L to 3.7 L, raising output from 303 hp to 325 hp. This increase gave the late‑stage FX50 a noticeable power upgrade.
Long‑Running Model Timeline
The Infiniti FX series spanned more than a decade, with production years documented from 2002 through 2013. Throughout this period, the FX50 remained a key performance‑oriented offering in Infiniti’s lineup.
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