[Suberman]

Stock rubber is a low rolling resistance tire with soft sidewalls. The Primacy HP gives up grip abruptly as the sidewall rolls over and plays dead. It works fine up to that point. Better tires do not do that. Stay well away from any LRR spec tire if you want decent performance.

Everybody who fits better tires likes the result.

Michelin Supersports are probably the industry leading tire in that category at present.

215 and 225 are roughly equivalent sections. It is unlikely you would notice a difference. I like the look of the 225 better so I went with that. The 225 is more suitable to developing driving skills, especially on the stock 17 x 7 wheel, because it has a slightly taller sidewall and will bulge slightly more on that narrow wheel. Both of these characteristics give a more progressive breakaway and the slightly shorter and fatter contact patch will make initial turn in a bit less critical feeling as the tire will give a bit more as you input steering lock. As oversteer develops you will find the counter steer a little easier with the slightly fatter tire. The narrower tire will feel slightly sharper and on that narrow rim will react more quickly.

I'd fit 225/45 x 17 Michelin Supersports.

I've just bought a set of OZ Alleggerita 17 x 7.5 in graphite silver with Michelin Pilot A/S 3 tires to achieve the same result but with cold weather in mind. If you routinely drive on summer tires at temperatures below 40 F then consider this particular top line all season tire seriously. If most of your driving is in proper summer temperatures then the Supersport is going to be hard to beat.