I installed these intakes around the end of May this season, also did the FI TDX exhaust + FI HFC.
Took the car in for an ECUTek tune here in Utah (FNP Tuning) and can tell you the car is a little more picky about the MAF readings due to the larger internal diameter.
I'll also tell you that it was totally worth it; I'm at 3400 ft elevation so the more airflow the better. Car put down 289 rwhp on a mustang dyno and runs beautifully.
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