This is my 2003 Miata with a BEGi Series 4 Turbo system. Right now the car makes 272.46rwhp @ 13psi of Boost. I'm planning on doing a motor build soon and cranking up the boost. With the Garrett 2860 Turbo that's on the car right now max power should be around 345rwhp which is just fine for me since the car weighs very little.