G37_4DR

The car is a 2011 G37 Sedan Journey RWD with the 7 A/T. In terms of bolt-on performance mods, I have an Invidia Q300 cat back exhaust. Practically speaking, with about $500 more to invest in the car, where is my money best spent? (1) CAI, (2) HFCs, or (3) ECU tune with just the exhaust? Thanks in advance for constructive input.

RMB5190

iTrader: (2)

None of the above and sway bars honestly.

Of the 3, CAIs don't net much gains until after a tune, A tune isn't going to be worth it with just an exhaust so HFCs if it absolutely HAS to be one of those.

Sways and a used set of coils will net you more noticeable improvements than any of the 3 you are looking at.

milkcow500

I say sways bars or a tune. A tune, regardless of the amount of bolt ons, will give decent gains. Most tuners will also provide free updates, so you can get tune adjustments if you ever decide to do more to the car.

VenomGT9

iTrader: (4)

sways
upgraded end links if you have money left over

G37_4DR

Thanks for the input, guys.