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I've got my Injen dual intakes (SP1988BLK) for sale, barely use and only on the car for less than 5k miles!! These are like new condition!! 250$ OBO shipped anywhere in the mainland United states.
Selling the Z to buy a house. Im parting out all my mods and this is one of the last things I have.
As far as benefit its hard to say since I did all my bolt-ons literally at the same time in prep for a tune. You're definitely getting more air in than a stock air box would
Why are you selling? Were these any benefit to the car? I've been reading the stock air boxes are just as good as any aftermarket cold air intake.
The benefit is in the mid to upper RPM range where the increased breath-ability of the cold air is felt (along with better sound). I did a custom tune using Osiris and the dyno graph shows this. I'll try to dig up that dyno graph and post it up later.
Dual Injen SRI Intakes (07-08 HR)
