You can use the front lip from a Scion FRS 2013 ish. the curves are close but you have to heat it and mold it a little. I am acutally selling mine soon as I lowered and scrape too much now. let me know if you are interested. I have done all the hard work. Took me about 6 hours to mold it.
If they can trace back any mod you do to a thing that goes wrong(and you bet they will) it will void the warranty on the affected parts. An exhaust may not void your suspension warranty but could affect engine things for example.