I have a set of Flux 3.5 injectors. I sent them to Don they had 40k on them when they were upgraded. Nothing wrong with them when set out as they were gone through and checked out. Since they have come back they may have 500 miles on them at most. Used to dyno and sled pull all summer. I have since upgraded to stainless bodies and larger sticks so I dont need them. Looking to get 2000 or best offer on all 6 of them. With these and single turbo and pump did 739 on level 3 on the Smarty.