Wheels for 2nd Gen RX7

[Aged racer]

Curious what specific wheel sizing and/ or offsets I should specify when ordering new wheels for my ITS car. Have run with the wheels that came on my car for years, but they weigh about 20 lbs each. Will probably buy a set of 15x7 Kosei's, but my mind is open, mainly want to be sure to order the right spec's.(If it makes a difference, most of my races are sprints @ VIR & Summit Point).

Any help/ advise would be appreciated !

[BALLZOUT]

Yes, by all means buy the Kosei's, they are great and the 15 by 7's from Tire Rack will fit right off the shelf. I used them on my last 2890# pig of a Toyota and only managed to bend the inside lip from hitting metal "clangers" on an airport track, very hard and fast( only way to get the pig around the track fast), but to this day they balance fine. Do not use the silly center spacers they give you, a guy w/ a VW Corrado kept getting loose lugs from the darn things, I never used them, and never had a problem.I bought a set for my new ITS RX, can't beat the wheel .

[Aged racer]

Thanks much, any info helps !