New head, new tune, now no boost

[smorgan87]

Stop letting hack job so called tuners jack with ur engine and you will see the heads stop cracking. Prty simple stuff really. Isx engines arent some kinda boogy man of motors u just cant tune em to tear themselves apart and expect em to last. But i suppose u could be one of thousands of Cummins owners that put some bs in the ecm and act like cummins did something wrong because it comes apart every 5 minutes.