CP Piston & Ring Set for Subaru EJ20 WRX - Bore (92.5mm) - Size (+0.5mm) - Compression Ratio (8.5)

CP Piston & Ring Set for Subaru EJ20 WRX - Bore (92.5mm) - Size (+0.5mm) - Compression Ratio (8.5)

Marsoni

M251S

$442.57

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

CP Piston & Ring Set for Subaru EJ20 WRX - Bore (92.5mm) - Size (+0.5mm) - Compression Ratio (8.5)CP Piston & Ring Set for Subaru EJ20 WRX Bore (92. 5mm) Size (+0. 5mm) Compression Ratio (8. 5) This Part Fits: Year Make Model Submodel 2005 Saab 9 2X Aero 2002 2005 Subaru Impreza WRX

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I noticed the engine running much quieter using this oil. The pour mouth is pretty unique for this brand, you can just open the interior cap, pull up the accordion neck and pour into the engine which provides better control over traditional wide mouth, thus less messy. This oil rarely goes on sale and is typically 1.5x to 2x more expensive than the more common US brands.

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Reviewed in the United States on August 28, 2025

Verified Purchase

Cooch

New York, US

★★★★★ 5

Best synthetic oil BMW

Excellent synthetic oil BMW 328I

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Reviewed in the United States on February 6, 2026

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Malu buys everything

San Leandro, US

★★★★★ 5

Last long

Love it ! Since I have a BMW this oil it’s good for it . The Price is good . Last long . No engine noise Or oil burning. Even the color looks good after 3 months.

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Reviewed in the United States on March 9, 2026

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Brian Classen

Boise, US

★★★★★ 5

FRIENDLY REMINDER Don't overtighten the bolts

MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.

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Reviewed in the United States on January 9, 2026

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Dklnyc

Charlottesville, US

★★★★★ 5

Strong product

Great quality

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Reviewed in the United States on March 11, 2026