Skip to content

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 &
Easy Shipping

Quick Dispatch:

Your CSF F1X M5/M6 and F9X M5/M8 High-Performance Engine Oil Cooler orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your CSF F1X M5/M6 and F9X M5/M8 High-Performance Engine Oil Cooler ships.

Need Help?
Questions about CSF F1X M5/M6 and F9X M5/M8 High-Performance Engine Oil Cooler, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for CSF F1X M5/M6 and F9X M5/M8 High-Performance Engine Oil Cooler in your area.

Get Shipping Estimates

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]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1558 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
Nobody
Birmingham, US
★★★★★ 5
GREAT PROPDUCT
Size: 2 fl oz
EXCELLENT
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 4
Cleans Out Working Carburetors
Size: 2 fl oz
I recommend this product for engines that will in fact start but not run well. I highly recommend it for that specific purpose, which it is designed for. It cleans the inner workings of the carburetor. Of course, you will have a cleaner carburetor if you take it apart and clean it with proper tools and a proper carburetor cleaner. You spray it in the gas tank, start the engine, and let it run a bit. It will not start an engine with a totally plugged up carburetor. Nothing is going to do that. Nor is it a fuel stabilizer, as one previous reviewer seemed to think. Nor is it a product to be used to bring life back to stale gasoline, as another reviewer seemed to think. The only thing to do with stale gasoline is drain it out and pitch it. Nor is it a product to be used for cleaning a carburetor you have taken apart to clean. You should use a proper carburetor cleaner for that purpose. I've given it four stars because it cleans out mildly plugged up carbs. It is not a miracle solution for really neglected carbs as the name suggests.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2020
R
Verified Purchase
Ray
Omaha, US
★★★★★ 5
Helps fixing small engines
Size: 2 fl oz
⭐⭐⭐⭐⭐⭐⭐
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
J
Verified Purchase
JustAGeek
Chelsea, US
★★★★★ 5
It works like magic, saved me $150.
Size: 2 fl oz
I filled 1/4 tank of gas into my snowblower which I could not started, sprayed about 15 seconds of Start Your Engines, rock snowblower to mix well, let it sat for an hour. I pulled string and yet couldn't start engine. Unscrewed spark plug and spray some into cylinder, put the spark plug back and pull the string. ENGINE STARTED!!! SAVED ME AT THE LEAST $150.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
B
Verified Purchase
Bear
Pawtucket, US
★★★★★ 5
Great
Size: 2 fl oz
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

recommand products