Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What is the Holley 558416 LS 1/2 TO LS3 MAP ADAPTER used for?A: The Holley 558416 LS 1/2 TO LS3 MAP ADAPTER is designed to adapt LS engine management systems to LS3 intake manifolds, ensuring optimal performance and compatibility for your vehicle's fuel system.
Q: Is the Holley MAP adapter easy to install?A: Yes, the Holley 558416 MAP adapter is engineered for easy installation, allowing you to upgrade your fuel system without extensive modifications or professional help.
Q: What materials is the Holley LS MAP adapter made from?A: The Holley 558416 MAP adapter is made from high-quality, corrosion-resistant materials, ensuring durability and longevity under various operating conditions.
Q: Does the Holley 558416 MAP adapter improve engine performance?A: Yes, by providing a secure and efficient connection between the LS engine management and LS3 intake, the Holley 558416 MAP adapter can enhance engine performance and responsiveness.
Q: Is this adapter compatible with other Holley products?A: Absolutely! The Holley 558416 LS MAP adapter is designed to work seamlessly with other Holley EFI products, allowing for a comprehensive performance upgrade for your vehicle.
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