My buddy works at a Chevy dealer as a parts chaser and the other day had to get off the truck a complete L92 truck motor.He asked about it and was told that a customer had put a K&N air filter in the truck.He was told that it contaminated the MAF and burned every valve on the motor because it ran lean.
I told him I thought that was B.S. Would the O2 sensor pick this up and adjust the A/F ratio.Does this motor have a MAP as a backup.I mean this does not sit well with me.I cant believe that the computer would let this go for so long that it would do this much damage to the motor.
He told me this will cost the customer $11,000 for the motor and labor.


I dont have any other info to give you but what are your thoughts.A new truck was in my future but now I dont know.I got 90,000 on my K&N in my current truck and have had no problems.Thanks