I’ll do the steering stabilizer because I already have it from a previous coach and the CHF, because it’s “C” but I’ don’t really consider any of it essential. I put front Sumos on my last F53 coach and found the benefit to be negligible and certainly not worth the $500 price tag (self installed). The available changes DO make for a less tiring drive but it’s a truck after all and it drives like one. You can be safe and enjoy the life without any upgrades. You get used to it as delivered.
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