He Didn’t Want My Help

I was talking with some friends the other day, and we all decided to go out to get a bite to eat.  Since there were only a few of us, we all hopped in my friend’s truck.  I noticed as we were going that it was running a little bit funny. I told him that if he wanted me to, I could help him put on a 6.4 dpf delete kit, because it really helped my truck run better and cleaner.  He told me that he would greatly appreciate it if I kept my mouth shut about his truck.  I was a little offended.