The aftermarket intakes feature more balanced airflow from runner to runner (way better than the FRPP stuff anyways). Even though the stock heads are a bottleneck, the better balance in airflow will free up some power across the RPM range (more than the increased airflow, this is where you probably see the gain from).
anywhosit get a plan together before you buy parts
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2002 5M GT (99% stock)
1991 5M LX (30% stock)
patiently awaiting my satin silver 07 Mach 1, and don't forget the shaker
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