You may want to contact a buddy of mine in TX. http://www.t1racedevelopment.com/
Tony is a great guy and has a lot of knowledge about performance cars. I'm sure he can help you pass emissions and have more HP safely.
You can tell him Byron with the yellow hatch from CT sent you.
227,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
Engine Build - Click Here