Just out of curiosity, does anyone know how the Zeta Stage 2 drop-in compares to the TRD highflow drop-in? Considering upgrading to the Zeta but i'm thinking they may be comparable.
(also Work HighFlow drop-in filter is supposedly +10hp gain from stock but i'm thinking mulligans lol)
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2013 Firestorm FR-S :
[TOTALED] TRD Exhaust
| Zeta Silicone Intake Pipe
| TRD Highflow Drop-In Filter
| LED DRL
| SwitchBack Front Signal Lights
| Custom 86 Wheel CenterCaps
2013 Argento FR-S : Quad Tip J2 Exhaust
| VIS AMS CF Hood
| Nitto Neogen Tires
| Perrin lightweight crank pulley
| Winjet taillights
| 6k HIDs
| SwitchBack Front Signal Lights