Originally Posted by EVL370

1. Warranty won't be a issue with a direct bolt on intake. If your that crazy you can just remove it before it goes in for a service. If your willing to change the cats, I don't why you would worry about intakes.

2. There would only be a couple of HP in it for the k&n filter or maybe none. Maybe it's not worth doing unless you wanna save coin in the long run and re-use the filter.

3. It's for headers.