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After holding off doing anything beyond cat back exhaust and a halltech intake I bit the bullet and went a bit further.
Added American Racing headers with cats and custom cam and valve train upgrade aong with a dyno tune. Results.... 427.5 RWHP, an 87.5 increase.
I can't say enough about how great Nick and the guys at American Racing are. I consulted with them about which headers I should get, what results I could expect and some tips on installation. The headers were a perfect fit, easy to install and the car sounds and runs great now.
Great #'s. Sounds like you 've made the correct choices so far.... Now keep going!! Hope I can do as well down the line with mine. I want to do similar mods next summer. Have the Headers, hi-flow cats and Corsa Sports w/tune this summer and love it! Still would like to visit the track though. Enjoy and be safe!
Fran