K&N Fuel Injection Performance Lexus GS400 98-Up Intake Kits
(all models - MPN: 579011) Description: Air Intake Lexus GS 4.0L F/I 98-00 57 Series Generation II Air Intake Kit by KN. This kit improves airflow into your engine. It includes a KN air filter and a custom designed air intake tube. The KN filter increases the airflow and the intake tube sm.... Read MoreDescription: Air Intake Lexus GS 4.0L F/I 98-00 57 Series Generation II Air Intake Kit by KN. This kit improves airflow into your engine. It includes a KN air filter and a custom designed air intake tube. The KN filter increases the airflow and the intake tube smoothes that airflow into the engine. The result is more horsepower and torque and better acceleration you can feel. Estimated Horsepower Gain 9.34 HP - 5978 RPM. Street legal in all States. Minimize | 
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