Koni STR.T Rear Shock - BMW F25 X3/X4

Marsoni

M251S

$121.88

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

Koni STR.T Rear Shock - BMW F25 X3/X4KONI Special ACTIVE is the latest generation of premium shock absorbers, offering superior handling and comfort. Utilizing the latest innovation of KONI's patented Frequency Selective Damping (FSD) technology, it controls large body motions and cornering forces, but offers a smooth feel over bumps and rough roads for improved comfort. Features: Special ACTIVE applications utilize KONIs latest generation of patented FSD (Frequency Selective Damping)

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I decided to try LIQUI MOLY Valve Clean to help keep the intake valves clean and maintain engine performance, and I’m really impressed with the results. After adding it to the fuel tank and running through a full tank of gas, the engine felt noticeably smoother and more responsive. It’s very easy to use—just pour it into the fuel tank as directed. I also like that it’s from LIQUI MOLY, a brand known for high-quality automotive additives. While it’s not a miracle fix for serious mechanical issues, it’s a great preventative maintenance product to help reduce deposits and keep the engine running efficiently. I plan to use it periodically as part of my regular maintenance routine.

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Reviewed in the United States on March 7, 2026

Verified Purchase

Jack

Bozeman, US

★★★★★ 5

Must have.

Size: 150 ml, Pack of 1

Very good product, works great.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 7, 2026