I just bought a 2007 Pontiac GXP that has the 18" Alcoa Forged Wheels. My question is that my front ones are noticeably dull compared to the back ones. I was wondering if there is something I can use to shine them up or if I can/will have to send them to be re-plated or whatever the process may be? I am new to this, so if you can provide any info on this, I would appreciate it. I am providing some pictures for the comparison of the back and front wheels. Thanks!!