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Should you prefer to just install the flap only, it will function less efficiently than when using the full Standard Performance Kit. With just the flap, it will open part way at part throttle, closed at idle, wide open at full throttle. 

Flap only (73-76)

SKU: F001
$50.00Price
  • For 1977-81 Pontiac Trans Ams. Proudly made in the USA 🇺🇸 

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