Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Racing Dynamics Downpipe - BMW / 535I F10 F11 F07/640I F12 F13/X5 X6 W/N55 - (NLA)Downpipe BMW 535i xi F10 F11 F07 640i F12 F13 X5 E70 X6 E71 2010 15 with N55 motor. This straight through tubing section replaces the heavy and restrictive OEM catalytic converter. Features: Straight through design allows for maximum power and sound. Less back pressure improves turbo response and improves horsepower and torque significantly. Typical gains are 15 20 HP. Direct bolt on replacement for OEM primary catalytic converter. We have left the
Downpipe BMW 535i xi F10/F11/F07/640i F12/F13/ X5 E70/ X6 E71 2010-15 with N55 motor. This straight-through tubing section replaces the heavy and restrictive OEM catalytic converter.Features:
- Straight-through design allows for maximum power and sound. Less back pressure improves turbo response and improves horsepower and torque significantly. Typical gains are 15- 20 HP.
- Direct bolt-on replacement for OEM primary catalytic converter. We have left the catalytic style canister in place for possible addition of a sport cat cell model in the future.
- Less thermal load on the turbocharger.
- Reduces turbo lag
Application List:
- BMW 535i ix F10/F11/F07 2010-15 w/N55 motor
BMW 640i ix F12/F13/F06 2012-15 w/N55 motor
BMW X5 E70 2011-13 w/N55 motor
BMW X6 E71 2010-14 w/N55 motor
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
4.0 ★★★★★
Based on 951 reviews
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Product Reviews
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Great socks
Size: Medium, Color: Pink - 647
Well-made and comfortable to wear. Great for golf and other outdoor activities. Like them because they do not show above shoes.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
These ACTUALLY stay put all day long - I was skeptical, but am so glad I took a chance on these
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I was so skeptical about whether these would stay on my feet all day without sliding down into my shoe - I’ve tried so many socks in the past with the silicone strip on the heel which failed.
I’ve owned these for a couple months now and they have never slipped down - they stay put all day! I love the variety of colors to choose from, and the value per pack is great since six pairs come per pack (I thought it was only three when I first purchased and was pleasantly surprised by the additional pairs). They also have perfect thickness - not too warm to wear during the summer months with sneakers; I live in a tropical climate, though, so I’m not sure how they will do in cooler climates. I’ve washed each pair once or twice and the color and quality of the silicone has stayed so far (knock on wood).
Overall: high recommend based on my experience so far!
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Reviewed in the United States on September 13, 2025
★★★★★ 5
Great fit!
Size: Medium, Color: (403) Washed Navy / Washed Navy / Blue Smoke
Great quality!
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Reviewed in the United States on May 15, 2026
★★★★★ 5
My favorite socks
Size: Medium, Color: (659) Fuchsia Dusk / Fuchsia Dusk / Tourmaline Pink
Very comfortable. True to size. Moisture wicking
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Reviewed in the United States on April 25, 2026
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