GSC P-D Toyota Supra/BMW Z4 B58 / BMW M3/M4 S58 Chrome Polished 28.5mm Head Exhaust Valve - Single

GSC P-D Toyota Supra/BMW Z4 B58 / BMW M3/M4 S58 Chrome Polished 28.5mm Head Exhaust Valve - Single

Marsoni

M251S

$36.18

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

GSC P-D Toyota Supra/BMW Z4 B58 / BMW M3/M4 S58 Chrome Polished 28.5mm Head Exhaust Valve - SingleSKU: 2091 01 UPC: GSC2091 01 GSC P D 2020 2024 Toyota Supra B58 2020 2024 BMW Z4 B58 2021 2024 BMW M3 M4 S58 Chrome Polished 28. 5mm Head Exhaust Valve Single GSC Power Division single chrome polished 28. 5mm head exhaust valve fits Toyota Supra B58 engines and BMW Z4 B58 plus M3 M4 S58 platforms. Direct OEM replacement delivers better heat resistance and exhaust flow for turbocharged builds. Perfect for cylinder head work in high boost or high RPM

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These things are so comfortable and warm. I sleep with them on because I like to have my feet out of the covers. Not too warm...just right. Great quality and fit with a non-slip leather-like sole. I'll keep ordering these ahead of time to make sure I'll always have a fresh pair when I wear them out. I wear them EVERY NIGHT and keep them on all morning. Life-changer! The BEST EVER!!

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Reviewed in the United States on March 4, 2026

Verified Purchase

Beth

Lexington, US

★★★★★ 5

Comfy slippers

Size: 10-11, Color: Cable Knit Coffee

Needed these for wood floors cause socks kept wearing out.perfect slipper ..warm and durable

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Reviewed in the United States on May 9, 2026

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Robert&Robbie

Grantham, US

★★★★★ 4

Great for indoor use.

Size: 10-11, Color: Cable Knit Navy

I bought a pair of these for myself about a year ago and there are plusses and minuses to them. They are comfortable and warm, without getting my feet sweaty or whatever. That's exactly what I wanted. On the minus side, mine ran far too small. I am a 10.5-11 shoe size and the 10-11 is about a half inch too short... my heels are sliding off the back. I am reordering a size 12-13 to try that one. In the take note column, the soles are NOT rubberized in any way. In fact they are like foam, and will absorb water! Also they do not provide cushioning against any kind of rough surface. I think they are perfect for strictly inside the apartment use, but they are not like moccasins or something that allow outdoor use. And I am ordering a 2nd pair after a year so I do like them.

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Reviewed in the United States on November 24, 2025

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Jeffery Mercer

Belleville, US

★★★★★ 5

They are of great quality!

Size: 12-13, Color: Cable Knit Coffee

Love em! After a year and there still Great and warm and Cozy too!

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Reviewed in the United States on May 26, 2026

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Cecil W

Louisville, US

★★★★★ 5

Wonderful sock slippers

Size: 12-13, Color: Cable Knit Navy

These are wonderful sock slippers, They are very warm and well made. After reading reviews, I decided to order one size larger (10 to 11) and they are really comfortable big. However, I'm glad I did because they a lot easier to put on and take off. Highly recommended.

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Reviewed in the United States on April 20, 2026