Aftermarket doesn't always equal track. I'd bet aftermarket for the Vette isn't 25% for honest track purposes. Exhaust, engine trim, aftermaket tires and wheels, bras, covers, i.e. almost all the stuff in the Mid America catalog aren't for the track - they look good. Even intake systems like Halltech and K&N are pretty much street performance items - stuff we have to have - cuz' we can. That said, I'd say the XLR buyers won't be the gearheads the Vette buyers are, and you'll see lots of appearance stuff. :leaving