I have opinion from my mechanics.
In my old cars i have only k&n and be fine.
Whom do you trust more? Your expierience or some mechanics?
but new cars have plastic items
I'm running K&N-Filters since 1986...and even then there were lots of plastics in the air path.
...and no. I don't have a race car, although I consider my T3 as one ![]()