Originally Posted by Co0p3r
So lets say I run a HFC and my borla exhaust. No 67mm TB, What class would that put me in? And what other types of cars would i encounter?
You would be in Street touring, now in '09 known as ST.
This is also known as Spec '89 Civic Si at the national level but, locally this class will see a large variety of cars. Foci, Neons, Subaru 2.5RS's, Civics, Accords, small displacement 4 seat cars w/o LSD's.
Go to SCCA.com, find your region and check out their website, most regions will post the results from their events. Look up some past events in STS to see what you'll be up against.