SKU: 3419772232

Active Autowerke Valved Rear Exhaust w/ 100mm tips - 2021+ G8x M3 / M4

Sale price$1611.05 Regular price$1790.05
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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

Active Autowerke Valved Rear Exhaust w/ 100mm tips - 2021+ G8x M3 / M4Active Autowerke is proud to release the Active Autowerke Valved Rear Exhaust for the BMW G80 M3 and G82 M4. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M car. In order to solve this, Active Autowerke has created a full exhaust system for the G80 G82 which comprises this rear axle back valved exhaust, a mid pipe with x pipe and a set of GESI

Active Autowerke is proud to release the Active Autowerke Valved Rear Exhaust for the BMW G80 M3 and G82 M4. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80/G82 which comprises this rear axle-back valved exhaust, a mid-pipe with x-pipe and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80/G82 with an amazing sound. You will feel like you are driving a true M-car again. 

At Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of G80/G82 BMW M3/M4 collection rear exhaust.

The Active Autowerke G80/G82 rear exhaust was carefully engineered to increase the sound level over the factory M3 and M4 exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an "M" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!

PLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there will be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes will have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.

KEY FEATURES

  • Made in the USA
  • 304 Stainless Steel
  • Low, Deep Sound with stock Valve Control
  • Each exhaust test-fit on our G80/G82 Exhaust Fixture
  • Guaranteed to fit all G80/G82 BMW M3/M4
  • Includes all necessary installation hardware

Active Autowerke GUARANTEES that each and every G80/G82 M3 and M4 Rear Exhaust Section will be a precise fit. Every Active Autowerke G80/G82 Rear Exhaust Section is test-fitted on our in-house G80/G82 Exhaust Fixture as part of our quality control measures.


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: 3419772232

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Jim Q
Birmingham, US
★★★★★ 5
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Color: Aqua, Size: 34, Color: Aqua, Size: 34
If you’ve ever wanted to channel your inner Squidward Tentacles, these pants are an absolute must for your costume. They’re the ideal blend of comfort and style, with just the right amount of “meh” that screams Squidward in the best possible way. Fit and Comfort The pants are designed for ultimate comfort—just the right balance between relaxed and structured. They’re not too tight, which is perfect for anyone who wants to lounge around in true Squidward fashion. Plus, they have an easy, breezy fit that’ll let you sit at your “couch” for hours, begrudgingly watching the world go by—just like Squidward himself. The Look These pants nail the Squidward aesthetic. The neutral color (a perfect, unassuming beige or taupe) gives off that “I’m here, but I’m not excited about it” vibe, which Squidward fans will immediately recognize. The waistband sits comfortably at the natural waist, and the straight-leg cut gives you that ‘I’m-about-to-bore-you-with-my-monologue’ look. Perfect for the Costume When it comes to costumes, attention to detail is key, and these pants hit the mark. They’ve got that slightly too-perfectly-average vibe that’s Squidward in a nutshell. Whether you’re pairing them with a simple short-sleeved shirt for a quick DIY look or going full costume mode with a wig and clarinet, these pants are the foundation of any Squidward ensemble. Versatility While they’re ideal for a Squidward costume, they also function as perfectly mundane pants for any occasion where you want to blend in, exude minimal enthusiasm, and avoid doing anything that requires effort. They’re just the right kind of forgettable to fit with any everyday outfit, in case you feel like giving a nonchalant, “I’m fine, thanks” at your next casual gathering. Verdict: These pants aren’t just the cornerstone of a perfect Squidward costume—they embody the very essence of Squidward himself: stylishly indifferent, effortlessly bland, and somehow still perfect. Five stars for bringing Squidward’s look to life in the most comfortable, “meh” way possible.
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Reviewed in the United States on December 26, 2024
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RJB
Bozeman, US
★★★★★ 5
Perfect red dress pants
Color: Red, Size: 32
These pants are legit! I got them as a backup to an American flag suit but they are my go-to red pants now. Very vibrant red, well made and good price. The length is purfecttt. I was worried they would be tight but the waist stretches and they look snd feel great on me.
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Reviewed in the United States on January 3, 2026
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romaningo smith
Chelsea, US
★★★★★ 5
He like them
Color: Red, Size: 42, Color: Red, Size: 42
Really nice too big in the waist
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Reviewed in the United States on January 8, 2026
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Shea
Los Angeles, US
★★★★★ 4
Good
Color: White, Size: 40
Looked nice but had to return no longer needed. Didn’t arrive as promised. Sizing was good. Value is ok.
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Reviewed in the United States on December 24, 2025
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Savannah
Los Angeles, US
★★★★★ 5
Perfect fit and great quality for a costume
Color: Purple, Size: 34, Color: Purple, Size: 34
These worked perfectly for my husband’s Mayor Humdinger costume. The fit was spot on, the length was just right, and the color matched the picture almost exactly. The fabric doesn’t have any stretch, but it felt nice and well-made, giving the costume a polished look. Overall, a great choice if you need something that fits true to size and looks high quality for a costume.
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Reviewed in the United States on December 6, 2025

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