[dietoremain]

Originally Posted by cleatus12r

Reliability? Leave it stock.

However, the Phoenix product page of the website has guidelines on horsepower levels and towing weight: Power Hungry Performance - Phoenix™ Chip

^what he said. And btw my truck has been tuned for over 30k and I wouldnt hesitate to do it again, reliability hasnt gone down one bit, I drive it well, not like a mad man...