Hmmm. I remember when I bought my first car, a classic 1968 Mercury Cougar (yes, I still have it & is now restored to show quality). Back then, I was 17 and the first thing I wanted to do when I got it home was jack it up in the rear end and put huge meats on the rear axle. I remember my Dad saying: "Son-- the automobile manufacturer's spend millions & millions of dollars designing & perfecting an automobile; and now you're telling me, the first thing you want to do is change it???" Needless to say, I followed my Dad's advice and kept my Cougar 100% stock (and it was the right choice).
What I'm trying to say is that the OEM stock shocks on the VX are the very best there is for the VX, period. As such, only factory OEM Isuzu replacement shocks (with exact same part number) should be used at time of replacement. Any other brand or model of shock on the VX would be a downgrade in performance. Stick with the factory OEM shocks when replacement is needed. You'll be glad you did.