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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
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Description
Racing Dynamics Catted Downpipes - BMW / M3/M4 With S58 MotorRacing Dynamics Downpipes for BMW M3 F80 & BMW M4 F82 F83 with S58 turbocharged 3. 0 liter inline 6 motor. Features: This model replaces the restrictive OEM catalytic converters with 200 cell sport cats for increased HP and Torque. Gen2 version is the 2nd generation of our downpipes and now incorporates flex joints to absorb engine chassis vibration and improve installation. These downpipes now incorporate heat shielding over most of their lengths to
Racing Dynamics Downpipes for BMW M3 F80 & BMW M4 F82/F83 with S58 turbocharged 3.0 liter inline-6 motor.Features:
- This model replaces the restrictive OEM catalytic converters with 200 cell sport cats for increased HP and Torque.
- Gen2 version is the 2nd generation of our downpipes and now incorporates flex joints to absorb engine/chassis vibration and improve installation.
- These downpipes now incorporate heat shielding over most of their lengths to reduce radiant heating into cabin and engine compartment.
- This downpipe fits BMW 3 and 4 series, F80/F82 M3/M4 with S58 turbocharged 3.0 liter inline-6 motor.
- Removing exhaust flow restrictions increases horsepower and torque significantly.
- Our Gen2 M3/M4 downpipes are now a full 76mm (3") in diameter for best air flow. Low cost versions are generally only 70 mm (2.75")
- Improves throttle response and generally improves turbo spool up.
- Downpipes are manufactured out of 304 stainless steel.
- Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound. Straight-through design improves horsepower and torque significantly
- Direct bolt-on replacement for OEM primary catalytic converters.
- Our Gen2 downpipes now include heatshield covering over 90% of the downpipes
- Less thermal load on the turbocharger
- Recommended for track/off-road use only.
- BMW M3 F80 2014 on
BMW M4 F82 2014 on
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
4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 1
Is this a Casper or Tempurpedic?
When I went to wash the pillow covering I discovered that it iterally had a Tempurpedic factory pillow covering underneath the Casper factory pillow covering - leading me to believe that it was either a return item shipped out as new, and the previous owner actually returned a Tempurpedic pillow disguised as a Casper, or Casper is actually manufactured by Tempurpedic and uses the Casper brand to upcharge. Either way - it's turned out to be an overly expensive - mediocre pillow.
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Reviewed in the United States on July 25, 2025
★★★★★ 2
Does not cool, is hot actually
I am very disappointed with this product. I write a lot of reviews and give credit where credit is due. I wish credit was due here.
I bought this as a gift for my wife. She slept on it for a few nights and finally stated that it never cools and is hot instead. And so I tried it and found the same thing. I bought an inexpensive cooling pillow from Costco and we both found that one to cool a little bit and it isn’t hot.
I’m summary, you don’t always get what you pay for and at $100, this pillow does not deliver. It’s supportive and it seems well made, which is why I give it two stars. But it does not deliver any cooling. Save your money and try a different pillow.
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Reviewed in the United States on January 5, 2024
★★★★★ 5
Does what it claims, supportive and eliminates heat.
Size: King (Pack of 1), Style: Single Pack
Its a bit pricey however when it comes to sleep quality im glad to pay for name brand. No tossing or turning to escape to the cold side of the pillow. Feels firm which was concerning at first however once you settle in its very comfortable. Seems to be just how foam pillows are made. Happy with the purchase.
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Reviewed in the United States on May 4, 2022
★★★★★ 5
I have found the PERFECT pillow for me!!!
Size: King (Pack of 1), Style: Single Pack
I just absolutely never write a review on anything, but I have to praise this pillow from the rooftops! I have not slept this comfortably is so many years! I have plushness and support, my neck is in alignment, and when I turn to sleep on my side the pillow doesn’t block my airflow. This pillow is perfectly made for me!!!!
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Reviewed in the United States on December 8, 2022
★★★★★ 5
The Perfect Pillow
Size: Queen (Low Loft)
Finally found the right pillow for me. I have purchased quite a few latex pillows attempting to find the right one. I was apprehensive due to the support description being "extra soft". Yes, it's super soft when you pick it up and squeeze it, but it provides the perfect amount of support for side and back sleeping.
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Reviewed in the United States on May 6, 2026