So my car came with a Sila center exhaust and I swapped it out for a Solo side exit(really like the Solo BTW). I was left with a big cut in my rear lower valance for the Sila tip. I made my own new lower valance trim piece similar to the later facelift cars. Thought it came out pretty nice. I designed it up in CAD then had it cut and bent at a local fab shop out aluminum. Then finally painted it black. It's held in with a few 1/8" pop rivets. If people like them I could have duplicates made pretty easy.