We do our R&D on the track. Many of our customers buy our pedals because of the show quality looks. However, we make our pedals for serious use. Our passion is driving, on the street and track. Our pedals are made to enhance your driving through improved heel toe sizing and improved grip. Our pedals will typically have 1/2" to 3/4" of extra material on the left side of the gas pedal. Once installed, you can fine tune the height relationship between the gas pedal and brake pedal to furthur enhance your heel toe performance.