An NFL season in 1972 consisted of 14 regular season games.
The 1972 Miami Dolphins posted a 17-0 record (regular season and playoffs).
the Tennessee titans had a record of 13-3 the best that season
pittsburgh
The team with the best regular season record in 2004 was the Pittsburgh Steelers at 15-1.
The Miami Dolphins, with a 17-0 record in 1972.
The Packers' best NFL regular season record was in the 2011 season, when they went 15-1.
Through the 2008 season, the single season NFL record for interceptions returned for a TD is 4 and is held by Ken Houston of the 1971 Houston Oilers, Jim Kearney of the 1972 Kansas City Chiefs, and Eric Allen of the 1993 Philadelphia Eagles.
For the 2008 season, that was the Tennessee Titans at 13-3.
The 1972 Miami Dolphins are the only team to go through a season undefeated. Their regular season record was 14-0 and they won their two conference playoff games and the Super Bowl to wind up 17-0.
1973 and the SuperBowl VII Againts the Washington Redskins
The Houston Texans, with a record of 2-14, had the worst season in the 2013 NFL regular season.