I have all the mods in my Sig. Power mods are K&N drop in filters- HPS intake tubes- FI long tube headers -HKS exhaust and I went and got a tune and made an extra 6-8whp and 7-9lbft of TQ throughout the whole power band so I would say its worth it...
DAN
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-My BRZ with exhaust will decimate all if we overnight parts from Japan-
10 Civic EX Sedan- Current Daily
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