Can't really comment on the tunes versus each other since I've only had experience with Evolve, but I only have a GruppeM intake and slip on mufflers and the tune did wonders for my car. Smoothed out the power delivery and really added more "kick" to the car especially in high RPM. Also made the sport button much more usable. Check my dyno graphs I posted in this section and you can see the power gains at the high end. I can only imagine how the car would feel with headers and the evolve carbon air box...
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