IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

Whatsup everyone new to club lexus!

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Old 11-13-01, 09:26 PM
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soparkrule
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Talking 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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Old 11-14-01, 08:25 AM
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soyb0mb
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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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