I raced a 6.7 today!
Just got back from it and thought id share the kill! He had a mild lift on it with gauges from what i saw and a single 7" stack. it was white. anybody know of this guy around Northern IL? well he reved the crap out of the motor at the light and i was behind him, when the light turned green we both nailed it. i got up next to him and from a 30mph start, we jump it and won by 5 car lengths, we both pull up to the light and i yelled at him that i just put in new spark plugs!, just to lighten the mood bc he seemed all pissed when i pulled up next to him. Id asked him he wanted to go again when the light turns green and he nodded. well needless to say i whooped his @$$. So we stoped at jewel-osco and started talkin ,showing me what he's done and gave me a ride in the truck. he didnt have much done other than exhuast, chip,dpf delete and intake. but i had to give it props for the interior work and firmness of the trans when it shift (trans being stock).
Thought i share...

 

hahaha well done teach them 6.7 guys a lesson