Speaking from personal exp. Had one fail less than a week after install(done by a shop for warranty). After finally getting a hold of someone there, took it to a shop that they wanted it at. Shop told them how it was wrong and they told me i took it to a bad shop and they dont know what they are doing. long story short, Communication turned to email only because they would say something then say they never said it. After a month and a half i was mostly reimbursed for the fix need to the trans. Only to have it completely roast a year later. Now its a $3000 empty shell i use for mock ups. This was installed in a 82 Camaro with a stock 350. Trans was rated for 600hp.