Maximizing hp on skyactive engine naturally aspirated

additeacha

Newbie
Points
1
Location
Barbados
Car
2014 mazda 6
Has anyone managed to get as much hp from the skyactive engine 2.5 naturally aspirated? So far the mods on my car are
short ram intake,
cold air box,
catback exhaust and
lightweight pulley..

I already have a tune on 87 octane. I went with 87 because I just wanted to be safe. However, I'm looking at getting a port job done and regrind my cams for midrange power.. after the new port and cam regrind, I will re-tune on 91 or 93 octane. If anyone has been this far as modifications, let me know your experience.
I probably might install the corksport header when it's released...
I also have difficulty finding other after parts for this engine but if anyone knows any sites you can drop a link.
 

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