So first here are the weights of my stock 18" wheels and tires. Tires are Continental DW Tuned in OE sizes.
I know that this information is likely available somewhere on the forum, but I had a hell of a time tracking it down in my research.
Front = 47.3 lbs.
Rear = 51.6 lbs.
Received my Apex EC-7's (18 x 10 ET25) a couple of weeks ago, and added Hankook R-S3's (275-35-18).
Weight of the EC-7's + R-S3's = 50.35 lbs.
A net gain of 3.6 lbs. at the wheels with the new setup. Believe that I'll take that negligible increase in exchange for the absurd levels of grip and stability that I'm sensing. Seat of the pants I feel like I've gained about 25% cornering grip. I know this isn't true, but it feels so much more planted around some of my familiar roads and highway ramps. Can't wait to get out on track!
Super artistic iPhone night shot..