So, I took my car to the dealer yesterday for a 3,000 mile oil change and tune up. I had the hogzawst stage II installed. When I went to go pick it up, the service manager came over to me and told me that "the exhaust modification I did was illegal and dangerous because it allows toxic fumes to enter under the back seats and trunk." He also said, "if they didn't remove it that it would void my warranty." So they took the liberty to remove it and charge me 20 some bucks for labor and 2 gaskets without even asking me first.
So now my LGT is all quiet and I can't hear her sweet purr anymore...
I guess I'll have to go spend another dollar on washers, but what the service manager told me still has me thinking. Can exhaust vapors actually enter the car with this mod? Hmm...