To get the full benefit from the 275's you will need a fooler and an elbow to dial it in. The ecm will pick up an overboost and back off fuel as you cross 21-22lbs. You can run without the fooler but your not going to get the full benefit of the injectors.
Mine is an early 99 with a set 275's as soon as they were available for the 24 valve. It wasn't long and I was in touch with the supplier and notifying them on the defueling. I can actually feel it They said they were aware of it and were working on a fooler. That was a long time ago and now foolers are very common.
Mine is an early 99 with a set 275's as soon as they were available for the 24 valve. It wasn't long and I was in touch with the supplier and notifying them on the defueling. I can actually feel it They said they were aware of it and were working on a fooler. That was a long time ago and now foolers are very common.