Tough challenge racing a ITB legal crx vs the bmw 2002s, turismo tc-3, and the volvos in ITB.
Probably harder than being competitive in ITA with the CRX-SI.
You won't see any ITB mixing lap times with the ITA and ITS guys in SEdiv or NEdiv.
I won the ITB SEdiv championship in 2006 in that CRX, and was regularly qualifying and starting ahead of 2/3 of the ITA field and most of the IT7 guys, and probably half of the ITS guys, especially at CMP. Most of the time at Roebling and Road Atlanta we were in different run groups. At Rockingham only 2 ITA and 1 IT7 outqualified me, out of a combined run group of about 30 cars (ITA, IT7, ITB, ITC), started 4th overall and finished 5th IIRC.
Ask David Liera (ITB 2005 SEdiv champ from Miami) about my CRX.
The Volvos always ate me alive at Road Atlanta due to the long straights, but on the tighter courses the CRX Si is a very competitive car in B. That being said, my car had everything that you could have on an 87 CRX Si... Housemann 4.93 FD, Mugen LSD, Koni double adjustable shocks, 29mm torsion bars up front, OPM Autosports engine, custom race header, etc.
If there aren't B cars mixing it up with the mid pack ITA and ITS guys either B has gotten a lot slower since 2006/7 or ITS and ITA have gotten a lot faster in the SEdiv.