Overview Reviews Product Description Pro Tuner "Knock Ears" Kit - Dual Channel 2014 Spec Includes: - Includes 2 sensors Product Videos Custom Field Product Reviews Write a Review Write a Review × HALTECH Pro Tuner "Knock Ears" Kit Dual Channel 2014 Spec Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *