To qualify for 5% and 10% volume discounts, all parts must be ordered at one time, on one invoice. All accepted payment types will qualify for the discounts with the exception of Cash on Delivery (C.O.D.). All products on the OPGI website or in catalogs listed as "On Sale", "Discounted Kit", "No Further Discount Available" as well as "High Performance" and "Aftermarket" items, are not eligible for volume discounts. All discounts are applied at the time of payment, or at checkout for online orders. Orders must exceed $999 or $499 in order to qualify for the discount. Cannot be combined with other discounts. Use promo code VOLDISC.