I've been doing my research on this, and, while I've been told I can get away with it, I'd rather just be upfront with the modifications I am running.

The only mods to the SI are a Versatuner tune, and a catless midpipe.

The grey area that I'm running into is, the fact that the factory PCM is in place, however the maps are obviously altered. I think for the sake of better safe than sorry, this, along with the midpipe, would place me in DSP, correct?

Obviously with just these two modifications and the rest of the car stock, this would leave me at a bit of a disadvantage considering what all DSP entails, but i'd rather not be in the "wrong" class, even though I am mainly running for the enjoyment of it. I've autocrossed before, so I'm not a novice. Any input would be appreciated!

 

The issue is the catless midpipe puts you in DSP. With a cat you could instead be in STX if you also have 200 TWR or higher tires.

 

Much appreciated, Team. I wasn't entirely sure how the PCM reflash was going to play a role in dictating my class, being that it's not physically replacing the PCM, but I knew the catless midpipe would be a deciding factor.

There's only one other car in DSP at this event, an E46 330Ci, but I'm not really focusing on anything aside from honing my skills at the moment. I just didn't want to run in the incorrect class, either way.