I'm looking to upgrade my fuel injectors to something larger. I'm currently looking at Dynomite Diesel or Industrial Injection. There is nothing wrong with my stock injectors I'm just looking for a little extra power. Both companies carry both over sized nozzles and injectors. There is quite a price difference between them. So far I've got an Airdog 2, Smarty Jr. and full complament of guages on the shopping list along with some trans upgrades. I'm just looking for some to set me strait on wether I can use nozzles or just need to replace all the injectors.