What is the point of installing the intakes if you aren't going to retune? You're just leaving power on the table if you don't. Not that it'll hurt anything if you don't retune. With your other mods, the intake upgrade will be minimal gains.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed |
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