The dimple drilled rotor was invented by EBC back in the 90's and has been imitated by many because of its ability to offer pad degassing without through drilling disc or rotor holes which has been shown to promote rotor cracks. The wide aperture slots on the EBC Turbo Grooved Discs actually draw cool air under the brake pad and rotor interface and help cool the temperatures of the pad contact which can shoot up to well over 1000 degrees at the very heart of the brake pad during heavy braking and can cause brake fade or loss of brake effect.These "Full Sweep" slots also help remove dirt, dust, debris and water from the braking area, but without doubt the main benefit of such sport rotors is their ability to maintain a flat and parallel pad surface throughout the lifetime of the brake pad set. Recent European R90 brake safety legislation insists on a very aggressive stress test of all replacement brake rotors. EBC rotors have passed this test and in the case of the Turbo Grooved design, the brakes were shown to run 100 degrees F cooler than non slotted rotors proving their long made claims that EBC Turbo Grooved Discs run COOLER! This listing is for a pair of EBC Turbo Grooved Front Vented Brake Discs to suit the following model: Chevrolet Corvette (C3) 5.4 - Years of manufacture 68 > 69 These are Vented Discs 5 Bolt Holes Diameter = 298mm Height = 78mm Thickness (Max / Min) = 32/30mm EBC Part Number = GD7060. We are dedicated to ensuring the highest possible quality service to our customers. You can send us a message by using the "Questions and answers" section towards the bottom of the page. The item "EBC Turbo Grooved Front Vented Brake Discs Chevrolet Corvette (C3) 5.4 (68 69)" is in sale since Saturday, January 27, 2018. This item is in the category "Vehicle Parts & Accessories\Car Tuning & Styling\Performance Braking\Performance Brake Discs". The seller is "larkspeedperformancecentre" and is located in Leeds, West Yorkshire, England. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Bahrain, Canada, Brazil, Japan, New Zealand, China, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bolivia, Brunei darussalam, Dominica, Ecuador, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Cambodia, Saint kitts and nevis, Liechtenstein, Macao, Monaco, Martinique, Nicaragua, Pakistan, Peru, Paraguay, Turks and caicos islands, Aruba, Saudi arabia, United arab emirates, Chile, Bahamas, Costa rica, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, Trinidad and tobago, Uruguay, Viet nam, France, Antigua and barbuda, Bermuda, Barbados, Cayman islands, Jordan, Saint lucia, Sri lanka, Maldives, Oman, Reunion, South africa, Ukraine, Colombia, Montserrat.