On my 08' I blew 2 60e's first at 3500 miles! 2nd at 13,000 but I was forced induction (4.8 magnacharger )....to me those 60s just plain suck !!
Now My cousin who is fully bolt cammed 5.3 ,np tuned his 60e is doing badass.
Maybe get your tune checked, go with the pros


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