Installed on my 2007 F-150 FX2; very nice tire and best bang for the $ in an area like ours [British Columbia by the coast] where rain and snow or ice and dry weather are all unpredictable and can be encountered all during the same day of driving; even in June! Sometimes they will thump for the 1st km or so but are fine when they warm up.
I went over the Coquihala Pass in a January snow storm and passed several vehicles with snow tires that were stuck [not that the
Spec-X are a winter tire but I was happily surprised]. They tracked well [excellently!] through icy ruts even though the 275/55s are wider than most other vehicle tires on the road [so like they were a tad wider than the ruts]. 200 lbs of sand in the back of the empty truck box keeps them working in snow & icy conditions.
In the rain [and we get lots here]; they are superb; no kidding; you'd think you were on dry pavement; hit a big puddle at 120 km/hr and they haven't ever hydroplaned yet.
Cornering: I think the truck would roll over before they would lose traction; I had to learn that the Spec-Xs were better than my vehicle & its suspension and my driving capabilities.
Noise: they are on a truck not a Lincoln Town Car; what can one expect? Having said that: they do not differ with the original tires.
I have a reprogramming chip [and some other mods] and set the maximum vehicle speed to 120 m/hr; I am happily here to report the Spec-X's just cruise along and track well at high speeds; again tire performance & quality exceeds the vehicle's aerodynamics.
Would have liked to see 60K out of them but they have worked well and lasted twice as long as the original Pirelli's our F-150 came with.
I am looking for another set soon; will likely buy the 305/50R20s instead of the 275/55R20s I now have.
Compared to other tires; the Spec-X out rotates other tires in traction, wear and comfort in all settings and I'd agree with that rating.