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FlexFuel Pressure External Regulator Bypass Plug w/ Gauge for LS Truck Intake Manifold Rail

Marsoni M251S
Sale price$24.99
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FlexFuel Pressure External Regulator Bypass Plug w/ Gauge for LS Truck Intake Manifold RailLS FlexFuel Pressure Regulator Plug w Gauge Port Installs in place of factory integrated flexfuel pressure regulator that is mounted to the fuel rail on truck intake manifolds *** ONLY compatible with Flex Fuel rails*** Required when using an external fuel pressure regulator Compatible with (1999 2003) LS Gen 3 truck SUV round FlexFuel rails Made in Wichita Kansas, from aerospace grade billet aluminum Includes adapter plug and oring Plug has a 1 8 27
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Chris 's opinion
Massapequa, US
★★★★★ 3
Thin material
Color: Blue Dots Check, Size: X-Large
Just thin Bought Malberg shirt same time for $9 more but fabric was far superior
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Reviewed in the United States on May 22, 2026
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Doug Sargent
Charlottesville, US
★★★★★ 5
Great polos at a great price
Color: Blue/White, Size: Large
Pleasantly surprised at the quality of these shirts. A bit heavier of a fabric then I anticipated but will be perfect for spring and fall. The size (large) was in fact large. :)
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Reviewed in the United States on March 8, 2026
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Amazon Customer
Dallas, US
★★★★★ 1
Avoid. Very thick
Color: Black/Red, Size: Large
Avoid. This is a thick shirt. Can’t wear during summer
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Reviewed in the United States on November 21, 2025
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D. E. Washington
Fort Morgan, US
★★★★★ 5
Nice shirt
Color: Blue/White, Size: X-Large
Nice shirt
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Reviewed in the United States on April 16, 2026
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Feds
West Palm Beach, US
★★★★★ 5
Good
Color: Teal, Size: XX-Large
"I highly recommend this purchase. The product's quality and performance have fully met my expectations."
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Reviewed in the United States on June 4, 2026

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