Mugen Spoiler For 5th Gens

Just wondering if anybody on here would know if anybody sells a spoiler like the Mugen one for a 4th gen? i love that style but on their site it's all 5th gen, i could settle with a replica from somewhere else as long as it's 4th, or could i go with the Mugen one and have it mounted on my 4th? not sure how to go about ths..........?