J's replica and spoon - replica 650$ expensive...

Mayby apr fiberglass plus some hmm sides rear lip?!

 

https://post.craigslist.org/manage/2601266407

or contact gunshow@vis ... ViS is a sponsor on here

 

All diffusers on the street are for looks to get any real gains from a diffuser you'd need it basically dragging the ground and you need a under body piece to direct air flow. So in the end its up to you. How much do you want to spend to add weight. I like the look though too.