Superlift 18-23 Jeep Wrangler Unlimited 4in JLU Long Arm Kit - Fox 2.0 Shocks

Superlift 18-23 Jeep Wrangler Unlimited 4in JLU Long Arm Kit - Fox 2.0 Shocks

Marsoni

M251S

$2494.99

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

Superlift 18-23 Jeep Wrangler Unlimited 4in JLU Long Arm Kit - Fox 2.0 ShocksSUPERLIFT 4 Inch Rock Runner Series Lift Kit w Fox Shocks: K199F. 4 Inch Rock Runner Series Lift Kit 2018 2023 Jeep Wrangler JL Unlimited with FOX SHOCKS Does NOT fit 2 Door Models, Diesel Models or 392 Models Suspension Lift Kit Avg Install time: 6 8 Hours Feature: Rock Runner On Vehicle adjustable long arms Feature: Dual Durometer bushings and flex joints with Nylatron races Feature: On Vehicle adjustable trackbars Feature: Dual Rate, long travel

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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.

Dallas, 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

Fort Morgan, 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

Dallas, 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

Port Orchard, US

★★★★★ 5

Works great

Works great

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Reviewed in the United States on May 26, 2025