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CSF F1X M5/M6 and F9X M5/M8 High-Performance Engine Oil Cooler

Marsoni M251S
Sale price$349.50
Pay 4 payments of $87.38 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
CSF F1X M5/M6 and F9X M5/M8 High-Performance Engine Oil CoolerSKU: 8317 CSF F1X M5 M6 & F9X M5 M8 High Performance Engine Oil Cooler The BMW S63 Twin Turbo V8 is the beating heart of the F1X M5 M6 and F9X M5 M8, delivering incredible performance. Over the years, CSF has been a key player in pushing the power limits of the S63 with its Twin Charge Air Coolers (CSF #8109 & CSF #8178). Today, many M5s, M6s, and M8s are producing well over 1000HP, but with increased power comes increased heat High Efficiency &
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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.
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4.1 ★★★★★
Based on 967 reviews
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Big "C"
Los Angeles, US
★★★★★ 5
Great Looking!
Color: American Flag, Size: 1
This fit nice and tight and looks great. Good protection for my tow hitch. I can recommend this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
G
Verified Purchase
GA Nichols
Bozeman, US
★★★★★ 5
Nice trailer plug
Color: Black, Size: 1
Fits perfectly and does not come off, even in the car wash. No fading in the last year of use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
A
Verified Purchase
Ade Nji
Charlottesville, US
★★★★★ 4
Good value for the price
Color: Black, Size: 1
A good fit and good value for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
M
Verified Purchase
MikeyDog
West Palm Beach, US
★★★★★ 5
Plug That Hole!
Color: Black, Size: 1
I have been very pleased with how well this cover is holding up. It fits snugly into the receiver hole and stays put. Makes the back of the car look so much better and keeps dirt out of the receiver. Good Job! PLUS: I don't have to store the plug in the back of the car any longer! Hinged piece is still nice and flexible.
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Reviewed in the United States on September 12, 2025
T
Verified Purchase
Talquin
Pawtucket, US
★★★★★ 5
Well constructed! Tight Fit.
Color: Black, Size: 1
Great construction, very durable. A bit tight to install, but that is not necessarily a bad thing. It will certainly keep it from ever falling off.
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Reviewed in the United States on April 3, 2026

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