Okay, never mind all that equivocating bullshit I posted above.
I DEFINITELY feel a difference. Like, a dramatic difference.
It’s much more eager to get to high revs now, and sings a less strained note when it’s up there. I swear the transition from low revs into boost range is smoother now too, and when putting my foot in it from low revs in a high gear, say moving to execute a highway pass in fifth or sixth without downshifting, summoning the twist to get it moving feels much more effortless. Also just feels smoother and more responsive throughout the range.
I was prepared for nuance but got a loud profanity.
Forcing myself to put a number on it, I’d guess it feels like it got 30 horses back.
Seriously awesome.
The PS4Ss are great too. Amazing how much better tires are getting with each generation. The PS2s this car shipped with were really fantastic at the time, but the PSSs and now the PS4Ss I’ve put on successively have each significantly eclipsed the previous set in terms of both comfort and stickiness.
Good stuff.