Has anyone here purchased this part in the past? I have the genuine Saleen rear valance but mine came from a wreaked car and is very wavy. I have tried to smooth it out to no avail. I have seen an installed Saleen knock-off before and was not impressed as it didn't run under the car to the fuel tank like the actual Saleen part.I'm not sure if it was the Cervini's part or not. I checked the Cervini site but could only find one view of it that didn't answer my question.