This Duraflex GT Competition Rear Lip Under Spoiler Air Dam is perfect for car enthusiasts who own a 2003 - 2004 Infiniti G Sedan G35. It's great for those weekend drives or when you want to stand out on the road. The one - piece design is made of FRP material. As for technical details, while specific size and weight aren't mentioned, you can expect it to fit your Infiniti G Sedan G35 snugly and add a sporty look without adding too much extra weight.