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Description
SLN BMW S58 X3M F97 X4M F98 Pre LCI Single Mid PipeSLN Performance F9x Series Single Mid pipe with extended underbrace! Welcome to SLN S58 Single Mid Pipe for the F9x platform, or in other words, the solution to the F9x sound problem. Enthusiasts have wanted to find a solution to the buzzy and raspy sound these cars produce from the factory. Since these cars were released, we all knew there is world class sound lying under all the rasp. Our mission has been to find this hidden sound and allow all F9x
SLN Performance F9x Series Single Mid pipe with extended underbrace!
Welcome to SLN S58 Single Mid Pipe for the F9x platform, or in other words, the solution to the F9x sound problem. Enthusiasts have wanted to find a solution to the buzzy and raspy sound these cars produce from the factory. Since these cars were released, we all knew there is world class sound lying under all the rasp. Our mission has been to find this hidden sound and allow all F9x owners to enjoy it. It's time to make the F9x sound like it always should have.
Features
Significant power gain
Extended under brace
Much deeper exhaust tone and reduces rasp which is typical of the S58
100% TIG welded
Highest quality 304 stainless steel
OEM-spec bottom ball flanges
All brackets and mounts as on OEM unit
This item fits the following BMWs:
BMW X3M / Comp F97 Pre-LCI
BMW X4M / Comp F98 Pre-LCI
EU / OPF cars will need to turn off OPF readings when fitting this mid pipe. This can be achieved by either an ECU tune / DME unlock, or being coded out. Please contact for recommended installers
The use of de-cats, sports cats and removing OPF are for off road/motorsport use only. Using these parts would inhibit your vehicle from passing a MOT test.
Only EC type-approved components are legal and fit for road use.
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 6 reviews
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Product Reviews
★★★★★ 2
Watch band
Color: Green
The watch looks great. Keeps n good time. However band is already breaking. I got this morning my elderly mom. Seriously sick of cheap products
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 3
Band will not hold up
Color: Blue
Watch is cute and works well, but the band did not last long ,ended up buying a leather band
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
★★★★★ 5
great watch
Color: Purple
this is the cutest watch and keeps great time!!!. I love the face, it makes me smile every time I look at it. great value
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Reviewed in the United States on April 21, 2026
★★★★★ 1
Bad quality. Stopped working within a month.
Color: Blue
This watch stopped working the day after Amazon accepts returns. I had only worn it twice. I had another similar watch which worked fine. I don't see any warranties from the manufacturer for this item. So a waste of money. Also for the 30 day return - I received this on January 11, it is February 11 - I should be able to return for refund.
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Reviewed in the United States on February 11, 2026
★★★★★ 5
Must wind the time adjustment knob in for it to work!
Its a gorgeous watch and I love the clasp design and band material. It works if you: 1. wind the time adjustment knob with the knob IN/towards the watch 2. pull out the time adjustment knob and wind the side button to change the time or 3. shake it hard- it starts and stays moving easily after that if you are walking/swinging your hand around. I dont know how long each wind/twist lasts but winding it (knob in) will keep it moving even if its just sitting. Options 2 or 3 only keep it moving temporarily. The band and clasp are really smooth and comfortable. The watch itself isnt too thick and the band is extremely easy to adjust to a custom fit (screwdriver and instructions included for adjusting the clasp location). Its really comfortable for an all day wear, is subtle for everyday wear but classy when looked at up close. For under $35 this is a gorgeous, simple watch and significantly cheaper than most of the others I've looked at. Havent tested under water yet though
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
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