screwed by srt

You buy a factory hotrod you best leave it stock...said that a while back on here and was told I was full of crap. Best friend owns a trans shop...sees this kind of crap all the time. Guy buys a diesel truck, chips it, exhaust and air intake kit. Blows the trans to hell...goes to the dealer and is told no more warranty. On the hook to my buddy for $6500+.
And for what it is worth...talked to one of the premier diesel tuners about K&N filters. Told me to toss mine in the trash as it doesn't filter as well as a dry filter...