SP Series - All SP series intakes are manufactured using Injen's unique MR Technology. MR technology is a means of restricting the intake in a strategic location and maximizing airflow in other strategic points in order to supply maximum amount of air through the intake manifold while getting maximum injection from the fuel supply in order to hit peak, optimal gains. Unlike any other intake on the market, SP series intakes are tuned. Injen is the only manufacturer that offers vehicle, engine, and ecu specific tuning. Not only will the a/f ration be optimal, it will be safe on your engine. Most cold air intakes will run your engine too lean, causing damage and missing optimal gains. MR technology is the most superior technology on the market.

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Nissan Altima Injen SP Short Ram Intake SP Series - All SP series intakes are manufactured using Injen's unique MR Technology. MR technology is a means of restricting the intake in a strategic location and maximizing airflow in other strategic points in order to supply maximum amount of air through the intake manifold while getting maximu From: $279.30