Difficulty Level: Not a bad product, several tunes to pick from, along with custom tunes, tuned mine to take premium and left at that, would recomend.

Difficulty Level: The Diablo Predator does not have a preloaded tune for the Airaid intake as it is advertised as not requiring a tune. Ease of Use 5.

Great product! Installation Guides Manufacturer: This is my third order and I must say they have been very timely with there free shipping.