Highly recommend
"I can always tell when the map sensors got carved up because it would cause rough idle on startup every oil change I would have them cleaned. I installed the adapters myself and did not have any cleaner at the time there was some carbon on it I got off what I could. No more rough idle on startup picked up one and a half miles per gallon. 24 Duramax 1 ton dually just over 50,000 miles."

