I had a question about the resinators myself.I saw somebody else had pics while they were removing them and my thought was isn't that going to void the warranty?Also I'm curious with technology and all what affect it would have on the horsepower and performance.Knowing what they know and the way things are tuned nowadays it would be my guess that the exuast is dialed in with the resignators and cats,just a thought,any info is much appreciated.