I just took a look at my Tamiya Lancer's EVO 5 and 6 WRC, what you need in fact is the front bumper and the spoiler parts, rear bumper is the same...
I got a Tamiya Evo 5 WRC that is missing some parts already, I plan to us it to make a time attack car, but under some conditions, I could send you the parts your looking for....
Send me a PM and we'll discuss about that
