Whatsup everyone new to club lexus!
#1
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Whatsup everyone new to club lexus!
Hey whatsup everyone, I am new to club lexus and I have a few question about the IS300. Currently I have a RMM Intake with HKS Exhaust, and I heard that it actually may decrease my hp because its not tuned? Any ideas?
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Thanks
#2
That is correct. many people foudn that the intake lost HP because the car wasn't programmed to handle that extra airflow. You should invest in the Apexi S-AFC (which requires you to tune it on a dyno for an additional ~$200?) or the Area 51 Black box, which is NOT adjustable.
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