If I never track my car, live in hot weather, and decide to chip my S4; do I need RS4 ICs? Thanks.
The S4 in chipped configuration heat soaks so bad, that I think it's a worth while investment.
If you live some place that has good gasoline 94+ and is cold most of the time, then probably not.
IC's will give you consistent power vs power when the IC's are frosty then retarded timing and **** performance when things get hot and sticky.
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I don't think I've ever thought that I needed them. Want them, sure, but not needed them.
Again, what do I know.
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