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

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

Marsoni

M251S

$349.50

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

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

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Ease of Installation: 5/5 This air filter was incredibly easy to install. It fits perfectly in my car model, and the instructions were clear, even for someone like me who isn’t very mechanically inclined. I had it swapped out in just a few minutes, and it didn’t require any special tools or expertise. Super convenient! Performance: 5/5 Since replacing the old filter with this one, I’ve noticed an immediate improvement in my car’s performance. The engine seems to run smoother, and I’ve even experienced a slight boost in fuel efficiency. The air filter does a great job of keeping dirt, debris, and contaminants out of the engine, which can only help with the long-term performance of the vehicle. Build Quality: 5/5 The filter feels sturdy and durable. The material seems top-notch, and you can tell it’s made to last. I’ve used other filters in the past that felt flimsy, but this one gives me confidence that it’s doing a great job of protecting the engine. Plus, it seems to be designed for better airflow, which should improve overall engine efficiency. Value for Money: 5/5 Given the reasonable price for such a high-quality product, this air filter is definitely worth it. It’s a small investment that can help maintain your car’s performance and keep things running smoothly. Considering how important air filters are for engine longevity, this is an excellent deal. Overall: 5/5 I highly recommend this car air filter. It’s affordable, easy to install, and delivers noticeable results. If you’re looking for a reliable replacement that can keep your engine running efficiently, this filter is a solid choice!

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Reviewed in the United States on May 5, 2025

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Panthersfan

Massapequa, US

★★★★★ 5

Great cabin air filter, very easy to install

Size: 1-Pack

.“Great, affordable cabin air filter that fit my 2024 Toyota Corolla Hybrid perfectly. My Toyota dealership wanted $60 to replace it, but I was able to install this one myself in under 15 minutes. Easy, cheap, and works exactly as it should.”

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Reviewed in the United States on May 25, 2026

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Ron Haas

New York, US

★★★★★ 5

Perfect fit and inexpensive

Size: 1-Pack

These are cheap and an easy fix to keep your car's HVAC running well. At this price you should replace these annually.

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Reviewed in the United States on May 5, 2026

Verified Purchase

Bradley Carlsen

Pawtucket, US

★★★★★ 5

Clean 2016 Prius

Size: 1-Pack

Fit my 2016 Prius good. I have had it installed for 10,000 miles and seems to work good still. With a nasty truck or old oil burner around me (windows up) I can smell some fumes but not much. Fumes might be coming from other sources like Worn window seals or firewall wire passages. If I flip the switch to recirculated air, I don't smell much. Great for the price and will buy another when I need it. Filter was great for winter driving. Better protection than stock. I forgot there was dog smell in the car.

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Reviewed in the United States on February 25, 2026