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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
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Description
Racing Dynamics Sport Downpipes - BMW / / X3M / X4MOur new Gen2 Racing Dynamics sport downpipes for BMW X3M (f97) and BMW X4M (f98) 2019 on models. Our Gen2 Downpipes include improvements in flex joint to reduce vibration and allow alignment during installation, O2 sensor bungs for reinstallation of the OE O2 oxygen sensors, and mounting brackets to support the weight. Down pipes by there very nature reduce restrictions of the catalytic converters allowing your turbos to breath more efficiently. This
Our new Gen2 Racing Dynamics sport downpipes for BMW X3M (f97) and BMW X4M (f98) 2019 on models. Our Gen2 Downpipes include improvements in flex joint to reduce vibration and allow alignment during installation, O2 sensor bungs for reinstallation of the OE O2 oxygen sensors, and mounting brackets to support the weight. Down-pipes by there very nature reduce restrictions of the catalytic converters allowing your turbos to breath more efficiently. This reduced restriction allows the turbos to spool up more quickly and provide a more aggressive turbo sound.
Features:
- Large diameter TIG welded 304 stainless steel piping throughout for maximum power.
- Direct bolt-on replacement for OEM primary catalytic converters.
- Our heat shield version protects surrounding parts, wires and hoses from rheat of the downpipes. The integral thermal insulaion reduces head radiation and passes the heat out the exhaust.
- Straight-through design allows for maximum power and sound. Less back pressure improves turbo response and improves horsepower and torque significantly.
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
4.6 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Nice!
Size: Medium, Color: C-1-black
Nice
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Reviewed in the United States on December 2, 2025
★★★★★ 4
Just Right!
The material is sports wear - light, breezy and silky to the touch.
Pattern/Design came out as expected from the image, no errors and I tend to choose 1 size up so Medium - Large are my go to's.
Fit well with spare room to fill.
Worth the money.
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Reviewed in the United States on October 18, 2023
★★★★★ 5
Well Padded, good zipper compartments
Size: 14 Inch, Style: 1-pack
This is a really basic case but it fits and looks amazingly great. This one fit my 15" laptop without any issues. The padded interior provides a bit of protection. The zipper side pockets are perfect. I use this to visit different campuses and holds just enough for field work. The price is right and compared to the name bags, this is a great bargain for a quality case.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Basic & Great
Size: 17.3 Inch, Style: 1-pack
Heavy duty, spacious, & basic. Great price for a great item.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Great no-frills bag. Slim and compact, but still holds plenty.
Size: 17.3 Inch, Style: 1-pack
I needed a case for my new HP Pavilion 17" laptop.
I didn't need anything fancy or with all kinds of special features. I didn't need one with a lot of extra storage space beyond what was required for the laptop, its power adapter and cord, and a small mouse. And above all I didn't want one with a large, bulky profile, one that would feel like I was carrying--or rolling--a small suitcase.
Turns out this AmazonBasics bag was just what I was looking for.
It is indeed slim and compact, and it's lightweight to boot (only weighing about 1 lb.). And even when it's filled to the brim and weighs a good bit more, it STILL looks slim and compact.
For its economical price point, it is constructed very well, and thus should be quite durable for light to moderate use. The stitching is very tight and clean, with even strong, "zipper-stay" stitching being included on this inexpensive bag. The zippers themselves (which I tend to be picky about) are of very good quality, and open and close without much effort. The zipper pulls are ample in size and weight, and are very strong and sturdy. In other words, they're NOT cheap.
I appreciate the case's simple yet thoughtful design. I especially like the single, large, zippered pocket on the front "face" of the bag, where you can easily and conveniently keep oft-used items such as your phone, keys, power bank, and so forth. Too many laptop bags' outside pockets are unzippered, which I find both impractical and unsafe.
The AmazonBasics bag holds my laptop snugly and securely, yet I can still manage to squeeze in extra padding (about 3/8" thick and 1.5" wide) all around its perimeter. I do this because the case provides only the most minimal of padding throughout. (Mind you, I wouldn't have expected sufficiently thick padding on a bargain bag such as this one, but it's worth bringing attention to nonetheless.) The upshot here is that, as well constructed as this case is, it's not designed to protect our laptops from accidental drops onto hard surfaces. There simply isn't enough shock-absorbing padding.
But frankly I'm not that worried about accidental drops. Rather, for my most pressing general needs--storing or transporting my laptop and keeping it free from dust, scratches, dents and the like--this AmazonBasics bag really fits the bill. It's easy to carry, and it's easy (and quick) to access your laptop.
I'm VERY happy with it, would buy another one without hesitation, and I highly recommend it!
Finally, my goal as a reviewer is always to try and help others make better informed decisions about potential Amazon products they may be considering. Toward that end, I hope in some small way that you may have found this helpful. Thanks for reading my review. Best of luck with your shopping!
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Reviewed in the United States on October 16, 2016
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