I think it's only good through today and only for online orders but it's 35% off for orders over $150. At checkout, type secret35 with no space into the promo box and you're good to go. You will need to pick it up at the store of your choice. Just ordered the Diablosport intune programmer for the GMC and saved $136. Can't wait to turn off the AFM and should see a bit better mileage as well.