OywhC Supercharger MAP Vacuum Port Sealing Cap for GM LSA/LSX Engines – Aluminum CNC Machined, Short Hole Spacing
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Description
xOverview: Precision sealing for GM air intake systems
The OywhC Supercharger MAP Vacuum Port Sealing Cap is a purpose-made upgrade designed to fit GM LSA, LS9, LT4, LS, LQ4 and LSX series engines (4.8L to 6.0L). Crafted from T6061 aluminum alloy and finished with a durable anodized coating, this cap combines rugged durability with a sleek, low-profile look. Before you purchase, please confirm the compatible MAP port hole spacing to ensure a proper seal and a clean fit.
Key benefits at a glance
- High-precision CNC machining delivers consistent dimensions for reliable sealing.
- Seals one or both MAP sensor ports, helping to reduce air leaks and shield the ports from dust, oil, and other contaminants.
- Anodized black finish increases surface durability and resistance to heat and road grime.
- Designed for easy, tool-free installation with included hardware and an O ring.
Real‑world use and benefits
In everyday driving, this cap can help maintain a clean, consistent intake pathway by preventing stray air and particulates from entering through idle ports. While not a guaranteed performance upgrade, a well-sealed MAP vacuum port may contribute to steadier air flow under varying loads and temperatures, which can translate to smoother idling and consistent throttle response.
Durability and precision you can trust
- Material: T6061 aluminum alloy, CNC machined for tight tolerances and long-term durability.
- Finish: Anodized coating to resist wear from engine heat, vibrations, and road conditions.
- Seal components: Includes an O ring and installation hardware for a secure, leak-resistant seal.
What’s included and how to verify compatibility
Package contents: 1 X Port Sealing Cap, 1 X O ring, 1 X Installation hardware. Check your engine’s MAP port spacing and match it to the product’s specifications before purchase to avoid misfit.
Installation notes and care
Installation is straightforward and does not require special tools—simply replace the old cap with the new unit, place the O ring, and secure with the supplied hardware. Handle with care to avoid dropping small parts and keep them away from children.
FAQ
Q: Is this cap compatible with GM LSA/LSX engines?
A: Yes, verify your engine family (4.8L–6.0L) and MAP port spacing to ensure a fit.
Q: How easy is installation?
A: It installs with basic tools using the included hardware and O ring for a secure seal.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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