I was about to purchase a set of Michelin Defenders from Costco because of their current $70 off promotion. A family member was kind enough to forward me an email offer they received for an additional $60 in savings, bringing the total discount to $130.
The email contained a single use promo code so unfortunately I can't share it with y'all. However if you are an executive member and are signed up for promotional emails, you may have received your very own coupon.
The promo terms state "One coupon code per emailed Costco Executive member. To receive the additional $60 coupon savings for tire installation you must purchase a set of 4 Michelin tires online at Costco.com and apply the unique promo code at checkout. Tires must be purchased in one online transaction. Additional $60 coupon savings for installation is not available for tires purchased at Costco warehouses. Valid online-only through 10/23/14."
This brought my out-the-door price down to $480 which is pretty sweet deal if you are in the market. I hope that someone else can take advantage of this deal!!!