A Cold Air Intake will increase the Horsepower of your Lexus GS400. By freeing up the intake track of that your engine relies on to make power a cold air intake is a inexpensive way to increase the performance of any GS400. Whether you choose an intake from AEM, K&N, Spyder or any one of our Cold air intake brands you can be sure to get a noticable horsepower gain along with that custom look under the hood of your Lexus GS400 .
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