GFB 52mm Boost Gauge 30psi

Marsoni

M251S

$75.15

Get it in 3 business days with 1 day shipping. Friday, May 29

GFB 52mm Boost Gauge 30psiA critical tool for every turbo car! Knowing your boost pressure is vital to ensure longevity of your engine. GFB's 52mm mechanical boost gauge reads vacuum to 30inHg and boost to 30psi, with a bold and easy to read LED backlit face. When the ignition is turned off, the smoked lens darkens for a clean and stealthy look. Supplied with vacuum hose, mulit size tee fiting, bezel and bracket to make installation easy.

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Called around for quotes to get them replaced and everyone was quoting over $2k just for bellows. Figured I’d give it a try. The rubber is good quality and feels soft. Time will tell but this is an easy job if you’re mechanically inclined. Make sure you replace the plastic water pickup fitting while you’re at it. Found mine to be cracked on disassembly and had to wait for a new one. Should be a easy 3-4 hour job if your not doing the bearing and only doing bellows

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Reviewed in the United States on August 26, 2024

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Ben

Dallas, US

★★★★★ 3

Just ok

Qualities OK, but for Marine applications might want better

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Reviewed in the United States on August 3, 2025

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Barbara S.

Alexandria, US

★★★★★ 5

Great quality

Just as described.

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Reviewed in the United States on July 22, 2025

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Paul Kirchberger

Alexandria, US

★★★★★ 5

Bellows kit review initial inspection’s

Very good quality. The hose clamps were event the better ones you have to pay extra in most cases.

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Reviewed in the United States on April 6, 2025

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Henry Williams

Belleville, US

★★★★★ 5

Durable and well fitting

Durable and well fitting. I drive a Honda Accord 2014 and when the under engine covers started falling off I used these to replace the ones that came off. They work well and the prying tool made replacing the retainers easier.

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Reviewed in the United States on January 18, 2026