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Description
Racing Dynamics Catted Downpipe With Heat Shield - BMW / S63 / F90 M5 2017+Catted downpipes from Racing Dynamics for the most powerful BMW M5 F90 2017 on. These BMW M5 F90 downpipes are full 3" downpipes and are manufactured out of 304 stainless steel with 200 cell sport cats and our heat shielded protection. Our Gen2 Downpipes now include flex joints in the seconday pipes to improve engine vibration resistance and reduce installation time. The downpipes also include O2 sensor bungs and mounting bracket in OE locations.
Catted downpipes from Racing Dynamics for the most powerful BMW M5 F90 2017 on. These BMW M5 F90 downpipes are full 3" downpipes and are manufactured out of 304 stainless steel with 200 cell sport cats and our heat shielded protection. Our Gen2 Downpipes now include flex joints in the seconday pipes to improve engine vibration resistance and reduce installation time. The downpipes also include O2 sensor bungs and mounting bracket in OE locations. Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound; recommended for track/off-road use only. For left hand drive models only!
Features:
- Large 3" diameter TIG welded 304 stainless steel piping straight-through design allows for maximum power and sound
- Improves horsepower and torque significantly - over 50 HP
- Direct bolt-on replacement for OEM primary catalytic converters
- Now available with 200 cell sport catayltic converters for more HP, less thermal load on the turbocharger and yet enviromently friendly. Direct bolt-on replacement for OEM primary catalytic converters
- Less back pressure improves turbo response and reduces turbo lag
These parts are intended for off road or track use only! This product is sold for off road use only. It is not legal for use on public highways.
This product is not for sale or use in California. It is available to our international customers for use within legal limits in their domicile.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.3 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 3
Great Cooling, But Lacking Support
Color: White, Size: Standard
I have to agree with some of the other reviews—this pillow just doesn't offer enough support. It initially feels plush and inviting, but after a minute or so, your head sinks too far and ends up pressing against the underlying latex, which has a rubbery, somewhat uncomfortable feel. It might be an excellent fit for those with smaller frames, but for me, it fell short in terms of proper neck and head support.
On the plus side, the cooling aspect is impressive. It's cool to the touch and noticeably more breathable than many pillows I've tried. I've seen some complaints about it not staying cool all night, but honestly, no pillow really does. Casper's claim of "12 hours of cooling" seems like marketing optimism—your body heat will eventually warm up any pillow, no matter how well-designed. That’s just basic thermodynamics.
All in all, it's a well-made pillow with excellent cooling performance. If you have a smaller frame, this could be a great choice. Unfortunately, it just didn’t work for my needs.
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Reviewed in the United States on June 7, 2025
★★★★★ 1
Is this a joke?
Color: White, Size: King
I don't usually write reviews, but I have to for this pillow. The pillow measures 16" x 32", not 18" x 34" as stated in the description. That's not really a big deal, but they should have the correct size in the description. The problem with this pillow is the total lack of support. My head falls through this pillow within a half hour of laying my head on it. This causes me neck pain and I have to switch to my old pillow in the middle of the night. I'm a bigger dude that's 6'3" and I only sleep on my side. I thought this pillow would be great based on the other reviews that stated it works for side sleepers. I would describe this pillow as a greatly overpriced marshmallow. The pillow does have some decent cooling properties, but they don't last all night as described. This pillow would probably work great for someone who sleeps on their stomach. I wouldn't recommend this pillow to a bigger dude that's a side sleeper.
Note: I did find a great Casper pillow that works for me. I bought the Casper Sleep Essential Cooling Foam pillow on Amazon. It's the one that's all foam with a phase change layer to help with cooling. The pillow has great support and it doesn't cause me any neck pain. The best part is the price, it cost less than half the price of the Hybrid Snow Pillow. I hope this review helps someone.
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Reviewed in the United States on July 28, 2024
★★★★★ 5
A Near Perfect Pillow
Color: White, Size: King
I was hesitant to order this pillow because it was so expensive. I was looking for a cooling pillow and after a previously purchased pillow lost it's "cool" after a few nights of sleeping on it, I was concerned that this Casper pillow would do the same.
The pillow is so comfortable. My only complaint is that it does not seem to hold the coolness all night. I find I need to flip the pillow over part way through the night. But, when I flip the pillow, it is perfectly cool.
The pillow is supportive without being too firm. I love this pillow!
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Reviewed in the United States on June 19, 2024
★★★★★ 2
Not quite right….
Color: White, Size: Standard
I’m torn on this pillow. While it does have merit, there were some serious “flaws” for me. I am a side sleeper and I’ve been on the hunt for a neck supportive pillow. This didn’t have that for me. The night started with good possibility, but I woke up several hours in and found the pillow flat where I was; all the filling had moved to the top. It IS very cool to the touch and I could definitely tell it was cool while sleeping on it. The loft of this pillow is fine, but not stupendous, and the softness was pretty great. Overall, just not the best. If the filling had stayed put through the night, I might’ve kept, but as it was, I returned.
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Does the job!
Color: White, Size: Standard
This pillow offers superb support and stays cool. It replaced my previous one from a couple years back. I did notice that, like so many things, it isn’t as full as my previous one but still offers a good nights rest for this side sleeper.
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Reviewed in the United States on February 3, 2026
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