Note you MUST checkout with Paypal to get coupon.Quote:
Discount Tire Direct via eBay cuts $100 off orders of $400 or more via coupon code "CTIRES16" when you check out via PayPal. Even better, select items qualify for additional discounts via these mail-in rebates. Plus, all orders receive free shipping. Coupon ends October 31.
Remember you can can checkout twice: once for each pair of tires to save $200.
**Coupon is good for 2 uses per Ebay userid.