The gains are already proven: Stillen still makes the most peak power, second Injen and third are the K&N drop ins and post MAF tubes. However, to get the most out of the Stillen intakes in particular, I still believe that a tune is necessary in order to tune the A/F ratio for safe and optimal power as the different diameter of the G3 intake pipes will cause the MAF to see a higher total volume of air flow.
There are numerous threads on this whole debate already, I think the title of the thread only serves to stir a well documented pot.
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-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob
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