Your Lexus NX Just Got Quieter and More Planted, and You Didn’t Even Have to Buy a New One

Your Lexus NX Just Got Quieter and More Planted, and You Didn’t Even Have to Buy a New One
lexus.jp
Pavel Pavlov
Author: Pavel Pavlov

Lexus Upgrade Factory now lets NX owners in Japan retrofit later factory fixes for ¥158,400 — quieter cabin, calmer body, and aerodynamic “fins” included.

You don’t have to trade in your Lexus NX for a fresh model year to get a piece of its later factory fixes. Through the Lexus Upgrade Factory service, a modernization package for the NX has launched at ¥158,400 with installation — roughly $1,070 at current exchange rates. It’s built for cars manufactured from November 2021 onward. You don’t need to buy an NX through the KINTO subscription to get the upgrade — the service is available whether the car is owned outright or subscribed to.

The changes touch several parts of the car at once. In the rear, wheel geometry has been corrected, a REDS damping structure has been added to the brace, and polyurethane elements now sit in the suspension to soak up small vibrations. The goal: calmer body responses over bumps and less body roll.

The second half of the package is essentially a time machine. It brings solutions from later NX model-year updates back to earlier cars. Extra vibration-damping material goes inside the doors, and a trunk cover with improved sound-absorbing properties is added. The purpose is the same as always — less road noise in the cabin.

The strangest part of the package, though, is the so-called “Shibetsu fins” — aerodynamic add-ons. KINTO claims they control slow air vortices around the body at frequencies below 1 Hz and cut the resulting vehicle oscillations by roughly a factor of ten. That should be noticeable driving straight, cornering, and in crosswinds — though for now this is the developer’s claim, not an independent comparative test.

Upgrade Factory was built specifically to let owners fit factory solutions to already-in-use Toyota and Lexus vehicles through authorized service centers. Compatibility for a specific car is checked online by chassis number.

For now, the program is limited to Lexus’s Japanese infrastructure. There’s no confirmation that the same parts and work will officially be offered to NX owners elsewhere, so the figure above is only a sense of the Japanese price level.

It was previously reported that Toyota had halted production of the Lexus ES, UX, NX, and RX in Japan.

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