I would avoid that pan for road racing. I found that it took to long for the oil to find its way back to the pickup and they are brittle. I found the ones that autotech was selling to be better suited and if you went off track easy to get back into shape. I'd suggest sending it back and see what they say. The worse part of the aluminum pan was pulling it with the transmission installed. It was next to impossible to remove the two 6mm bolts under the rear seal. I vote for steel and a refund. mark