★★★★★ 5
Good
Love this product, take it daily
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Reviewed in the United States on May 30, 2026
Cometic GM LS1 SB 4.130 inch Bore .066 inch MLS Head Gasket
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Cometic GM LS1 SB 4.130 inch Bore .066 inch MLS Head GasketThe embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes This Part Fits: Year Make Model Submodel 2001 2004 Avanti II Base 2008 2009 Buick LaCrosse Super 2004 2007 Buick Rainier CXL 2004 2005 Buick Rainier CXL Plus 2004 2007 Cadillac CTS V 2002 2005 Cadillac Escalade Base 2003 2005 Cadillac Escalade ESV Base 2002 2005 Cadillac Escalade EXT Base 2013 Chevrolet Avalanche
Quick Dispatch:
Your Cometic GM LS1 SB 4.130 inch Bore .066 inch MLS Head Gasket orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Cometic GM LS1 SB 4.130 inch Bore .066 inch MLS Head Gasket ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.9 ★★★★★
Based on 1508 reviews
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Product Reviews
★★★★★ 5
Worth the money
It the first thing I drink in the morning
Taste is good, easy to use, keeps my body happy.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Metamucil with a fiz!
Great product. Does what it’s supposed to do.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Competitive pricing
Works as advertised
Name brand item
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Reviewed in the United States on May 5, 2026
★★★★★ 1
Their other flavors without fizz are great...but not this one (My honest opinion).
Now I know why this one was so cheap! The taste was not pleasing to me at all... I threw it away. However, I do love their other lines, with the berry flavor being the best! Orange is good too but to obtain the best flavor, 2 spoons are required (for me anyways). Also, the berry flavor (while only taking 1 spoon) is even better tasting if you add a little lemon juice to it. Finally, I read that adding lemon juice to water helps to prevent kidney stones! Who knew! This is a good product but I think they went to far trying to add "fizz".... the effect was negative while the previous products are great!
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Reviewed in the United States on October 26, 2025
