Shop › 70s Boss 429 Mustang Nascar Edition Yellow T-Shirt Image 1 of 3 Image 2 of 3 Image 3 of 3 70s Boss 429 Mustang Nascar Edition Yellow T-Shirt $95.00 Good condition. Mild piling. Crisp graphic. Staining throughout. pinhole on front. Single stitch. Size: XL Pit to Pit: 21" Length: 26" Add To Cart Added! Good condition. Mild piling. Crisp graphic. Staining throughout. pinhole on front. Single stitch. Size: XL Pit to Pit: 21" Length: 26"