Originally Posted by GTO JUDGE

Inspect the belt, check the tension on the belt. When you push on the belt, it should give slightly but not more than 1/4." If you notice it is loose it may just need tightened. Belts do loosen up but the tensioner should keep it correct.

These high mileage belts should not be giving you a problem yet, unless you see cracks or slices in it, I would think the tensioner would be the culprit. You shouldn't have to be spraying belt dressing on it all that does is improve gripping temporarily.

I would tend to think if you replace the factory intake with after market, expect voiding the warranty. I'd call your dealer and ask, or call a dealer you don't deal with and ask them.