I'm pretty sure that intake/headers/exhaust is generally never a cost effective way to add power to the car. I'm sure there's some exceptions out there, but doing any of those mods is a waste of money if you're looking at gains. It's pretty much for the sound.

 

Tanabe mid pipe for the win lolz, best gain lolz

 

Being bolt on's, if we could tune the darn thing then . oh well

 

tuning wouldn't help much... as folks who've used AFCs found out there's maybe 8-10 hp total available that way...the stock programming and engineering on this motor is pretty good.

(Note: it's not super useful to use an AFC in normal driving as the ECU tunes its changes back out in closed loop mode... but it'll "work" for 50-100 miles or so before that so could help a touch for a track day)

 

wow 50-100 miles thats it?! not worth the effort then, cause if you took it to a track you'd rack up miles in no time lol