These injectors were bought 4months ago as a little test I wanted to try. will cheap ebay injectors work? Um no they don't. They have 10 miles on them because two of them came out of the box not working. Truck idled rough and would constantly smoke. These are cheap knock off Bosch injectors. The internals are not Bosch is what my diesel shop told me when I had them tested. Said they looked used like core returns cleaned and resold. The listing said 3year warranty then in another pic said 5year. But to the point I purchased a set of these as a test and as expected they failed miserably and instantly. So my advice to everyone is spend the $2k + and buy from a reputable local source. The seller I purchased these from was purpaauto18 for  $599 and when I contacted them about claiming a warranty. Never heard back from them so kept bugging them and finally they blocked me. Also ebay only let's you leave feedback up to 30days now so couldn't give the a bad review even because I let them sit around for 2 months before I tried my test on these knockoffs. So hope this helps others save money!! You get what you pay for has never been so true!!