All of our tunes come with free tune edits for 1-year from date of original tuning. So if you've changed your air intake, exhaust, tire size or just want the tune tweaked for whatever reason it's covered for the first year. **Customer must come to us if not possible the customer will be billed at the rate of $45 hour plus travel rate of $0.58 per mile. Edits outside of the 1 year edit window are deeply discounted.