Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103CB)
SKU: 49097643478

Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103CB)

$1367.58 $1519.53
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Description

Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103CB)The Active Autowerke Valved Rear Axle Back Exhaust is engineered specifically for the BMW X3M (F97) and X4M (F98) to enhance exhaust sound and driving experience. Designed to work seamlessly with the factory valve actuators, this rear axle back system increases exhaust volume and delivers a deeper, more aggressive tone befitting an M vehicle. Manufactured in the USA from 304 stainless steel Utilizes stock valve control actuator for functional

The Active Autowerke Valved Rear Axle-Back Exhaust is engineered specifically for the BMW X3M (F97) and X4M (F98) to enhance exhaust sound and driving experience. Designed to work seamlessly with the factory valve actuators, this rear axle-back system increases exhaust volume and delivers a deeper, more aggressive tone befitting an M vehicle.

  • Manufactured in the USA from 304 stainless steel
  • Utilizes stock valve control actuator for functional integration
  • Test-fitted on a dedicated F97/F98 exhaust fixture to ensure fitment
  • Guaranteed fit for all BMW X3M and X4M models (F97/F98)
  • Includes all necessary hardware for installation

This axle-back exhaust complements Active Autowerke€™s full X3M/X4M exhaust lineup, which includes a single mid-pipe and GESI catted downpipes, enabling a comprehensive upgrade that maximizes sound and exhaust flow. While this axle-back section provides a noticeable enhancement over stock, the most dramatic sound improvements occur when combined with their mid-pipe and downpipe components.

Note: A version of this rear exhaust is available for customers opting to retain their stock mid-pipes; however, additional parts or charges may apply if upgrading to an Active Autowerke mid-pipe later due to required connections.

This product balances performance and auditory appeal, reflecting Active Autowerke€™s commitment to refined, authentic M-car driving dynamics.

  • Part Type: Exhaust Systems
  • Fitment Specification: Vehicle Specific (BMW X3M/X4M F97/F98)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 49097643478

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4.6 ★★★★★
Based on 1691 reviews
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Verified Purchase
Roberta Mayes
Carnegie, US
★★★★★ 5
Heavy duty legs for table.
Size: side table leg
Perfect legs for a table I am having made. I have an cottonwood slice. It's heavy and needed something substantial. These are perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
R
R. Moheban
Grantham, US
★★★★★ 5
Robust pipe & fittings with a beautiful, smooth black finish
Size: side table leg
This set of pipe & fittings for use as low table legs is heavy duty and aesthetically pleasing. Especially when the pieces are handled, the tactile sensation is much nicer than with plumbing steel pipe because this product is beautifully finished smooth. The black pipes are quite smooth as well as the fittings. The pieces are all also pretty robust, though the wall thicknesses are less than in pipe for pressurized water systems. Of course that makes sense as this product does not need to hold fluid pressure. In my view they got the heaviness factor of this product just right; it's not as heavy or robust as black pipe used in natural gas supplies, but still robust and pretty heavy. Assembled, this product is absolutely stiff and unyielding for a solid table that could hold a man's weight easily. The feet utilize a brilliant scheme so that each foot can be independently adjusted for an uneven floor. Thus a level table on an uneven floor is easily accomplished. The feet simply extend the effective leg length by screwing counter-clockwise. To prevent any shifting at the threads adding some pipe compound or teflon tape may be advised. Even masking or duct tape might work as the idea is to just fill any gaps where male threads meet female threads. The four flanges at the tops of the legs provide a wide, solid surface for attaching the table top, with either hidden screws underneath or you could through-bolt a glass table top (provided you have the skill to drill glass!). I think this product would look great with a glass top. Assembly is quick and easy. The hardest part is drilling holes underneath the table top to accept screws. No pipe wrenches are needed as the pieces screw together by hand to an adequate tightness. If any doubt whether they are tightened enough have a strong person with grippy gloves finish. The "X" in the center attaches to the legs with a very clever machine screw system tightened with the included hex wrench. This is presumably because if tightened simply by screwing the fittings, the point of snugness would not likely be where the "T" fittings are exactly vertical. The maker has solved this problem so that you are assured that all legs will be in the perfect vertical position once everything is tight. The setup is also nice and rigid once tightened. This is a huge benefit of steel pipe projects; they are really solid. The black finish is clearly very durable, like a powder coat. It appears that it will provide excellent protection against rust. Coverage is complete; I found no dings or scratches anywhere on any piece. Overall this is a very well-designed product for function and aesthetics. Perfect for a beautifully renovated warehouse condo where an industrial vibe is desired in a rock-solid table that won't shift around. The smoothness of the pipe is top notch. I've used lots of pipe in projects, some of it actual water pipe and some decorative pipe such as this. I've never seen better quality decorative pipe as this maker put in the effort to finish it beautifully smooth. At currently $34.99 I find the price quite reasonable too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
P
Verified Purchase
patricia
Bozeman, US
★★★★★ 3
the height is only 16"
Size: coffee table leg
The height is only 16". From the description it appears to be 24" wide and 24" high.
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Reviewed in the United States on April 2, 2026
C
CMC20
Omaha, US
★★★★★ 4
Good DIY Pipe Legs but Powder Coat Quality Lacks
Size: side table leg, Size: side table leg
These industrial style pipe legs make building a DIY end table easy and the kit saves a trip to the hardware store. The fittings go together normally and assembly is simple. Comes individually wrapped. My main issue is the powder coating looks and feels cheap and rubs off easily. The pipes already had marks from touching each other from unboxing. If you do not mind some wear on the finish over time this is a decent purchase. The metal at the hardware store will be thicker and more durable but will cost more. I’d recommend based on ease of having a kit and it being delivered saving me a trip.
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Reviewed in the United States on December 30, 2025
M
Mark Weinberg
Los Angeles, US
★★★★★ 5
Stable, attractive, and easy to turn into a table with your choice of top
Size: side table leg
The X-shape of the table legs - constructed with solid metal flanges, T-joints, X-joints and 1-inch diameter pipes - provides a strong and sturdy base for a wood top. The legs have adjustable feet pads to prevent scratches and ensure stability. Assembly of the legs is relatively simple (the instructions are clear) but you will need your own tools to attach a top. The industrial design is especially well suited to rec room or finished basement use. I am adding a 28" diameter raw edge slab of wood from a recently felled tree as the top and it is very attractive. (Photo unavailable because after I made certain it would work I sent the slab out for drying and finishing.) If you want a custom table and have a particular piece of wood you want to use, these legs are an excellent choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026

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