If you read this, take the 30 seconds it takes to make your voice heard at:
http://www.sebscca.com/
Member feedback is what drives these changes. If you're really lazy, you can just copy the following, or paraphrase it:
In response to the February 2011 Fastrack bulletin regarding Street Touring changes, I agree that rules should be made consistent through the class. However, this consistency should also apply to how cars are grouped. While the EF (1988 - 1991) Honda Civic is similar to its STS counterpart, many of the cars listed as moving to STS appear to be much heavier, and thus should not be grouped with STS cars. Specifically, the 240sx, Impreza 2.5RS, and 1994 - 2001 Integra would be better fit to ST on narrow tires, or STX on wider tires. Please consider grouping these cars with others of similar weight so that they can remain competitive, as many people are still running them.