Most here agree that it's best to run a full CAI or drop in's. Gains may show when your on the dyno with the hood up, not so much when your engine compartment is as hot as an oven and your intake is sucking that up instead. The stock box pulls cool air from behind the front bumper. It really only shows it's limitation above 6500rpm. True cold air intakes only improve performance over the stock by larger and smoother intake piping, and a slightly better flowing air filter. I think after the ECU adjusts, the only thing your going to get from short rams is the sound.
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Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI
New Car: Under Construction
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