Vibrant 4 Ply Reinforced Silicone Transition Connector - 3in I.D. x 3.25in I.D. x 3in long (BLACK)

Vibrant 4 Ply Reinforced Silicone Transition Connector - 3in I.D. x 3.25in I.D. x 3in long (BLACK)

Marsoni

M251S

$28.99

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

Vibrant 4 Ply Reinforced Silicone Transition Connector - 3in I.D. x 3.25in I.D. x 3in long (BLACK)Vibrant Performance Aramid Reinforced Silicone Couplers are hand wrapped and feature 4 ply reinforcement, which allows our couplers to be capable of withstanding extreme temperatures and heavy duty pressure conditions without swelling or bursting. All Vibrant Performance reinforced hoses meet or exceed SAE J20 specifications, are suitable for coolant service and are UV and Ozone resistant. Not suitable for oil or fuel service, although custom hose

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We offer a 30-day return/exchange service after receiving.
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Seemed to work as well as or better than some more expensive catalytic converter cleaners. I put it in while at 1/3 tank and my Check Engine light went out almost immediately once I started driving. My Tundra has almost 230,000 miles and still runs great but was getting a little harder to start after I switched from full synthetic oil to conventional. I’ll never do that again and immediately switched back but the damage was done. Check engine light came on and I had to crank longer to get it started. Adding this Liquid Moly fixed both issues temporarily. I have to wonder if this was used regularly, say every 3 months, if it would clean the catalytic converter more permanently?

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Reviewed in the United States on December 29, 2025

Verified Purchase

Jon.

Pawtucket, US

★★★★★ 3

Ehh??

Didn't work for my on my 17 hyundai accent with 90k on it. I poured the whole bottle in with a half tank of gas. And went for a 3 day italian tune up.... no dice.

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Reviewed in the United States on May 8, 2026

Verified Purchase

Juan Gonzalez

Alexandria, US

★★★★★ 5

Works great

Follow instructions and it will work. Had a p420 code, caught it early used this. No more code and passed emissions

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Reviewed in the United States on May 10, 2026

Verified Purchase

Matt Teed

Port Orchard, US

★★★★★ 5

Actually works on BMW!

I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!

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Reviewed in the United States on November 12, 2024

Verified Purchase

Dak

Houston, US

★★★★★ 5

Works great

Works great

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Reviewed in the United States on May 26, 2025