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CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger w/Rock Guard - Black

Marsoni M251S
Sale price$324.50
Pay 4 payments of $81.12 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger w/Rock Guard - BlackCSF, The Cooling Experts, have been serving the US aftermarket for almost 4 decades. With over 30 million units sold, CSF is your exclusive source for Radiators, Condensers, Intercoolers, Inverter Coolers, Racing Radiators and Pressure Caps. This Part Fits: Year Make Model Submodel 2017 2021 BMW 230i Base 2017 2021 BMW 230i xDrive Base 2014 2018 BMW 320i Base 2016,2018 BMW 330e Base 2017 BMW 330e iPerformance 2017 2018 BMW 330i Base 2017 2018 BMW 330i
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
Based on 167 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Really snug, but not uncomfortable
Size: Large, Color: Black
I don't know why these were so much tighter than all the other UA socks I've bought over the years. Not uncomfortable, just really tight when putting them on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
M
Verified Purchase
Melissa Bonnell
Omaha, US
★★★★★ 5
Great quality
Size: X-Large, Color: Black
Teenager loves these socks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
R
Verified Purchase
RustleMeNot
Whiting, US
★★★★★ 1
Leg part is TIGHT
Size: X-Large, Color: Black
I am a size 15, and the foot portion is comfortable enough, but the fit of the leg portion is so exceedingly tight that I can't wear them for long, which makes them worthless. I would return them if I didn't already toss the packaging.
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Reviewed in the United States on May 18, 2026
N
Verified Purchase
no body!
Houston, US
★★★★★ 5
Perfect fit
Size: Large, Color: (100) White / White / Black
Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
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Reviewed in the United States on February 12, 2026
Q
Verified Purchase
Quick Reviews
Waukegan, US
★★★★★ 5
Post-COVID Sock Hunt: Finally a Win
Size: Medium, Color: (001) Black / Black / White
Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast. These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid. A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day. We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice. Ratings: • No slipping: 10/10 • Price: 7/10 • Durability (so far): No pilling or loose threads — promising start.
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Reviewed in the United States on March 24, 2025

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