Active Autowerke Signature Exhaust System - BMW / G80 / G82 / M3 / M4
SKU: 15998498305

Active Autowerke Signature Exhaust System - BMW / G80 / G82 / M3 / M4

Sale price$1956.87 Regular price$2174.30
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Active Autowerke Signature Exhaust System - BMW / G80 / G82 / M3 / M4**This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF ROAD USE ONLY! ***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke. com and you can fax it to us at (305) 253 8921*** Active Autowerke is proud to release the unique Signature Race Only catback

**This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF-ROAD USE ONLY!

***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to [email protected] and you can fax it to us at (305) 253-8921***

Active Autowerke is proud to release the unique Signature Race Only catback exhaust system for the BMW G80 M3 and G82 M4. This brings our expertise with a single mid-pipe and leverages our many years of performance tuning for BMW M-cars. It provides a deeper tone to the stock exhaust and is not intended for street use since it gives a loud sound as the exhaust is fully open at all times (does not use OEM valves). We have also added the option of an exhaust DUMP right after the downpipes to maximize the sound.   

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 race only exhaust system for the G80/G82 which provides the raucous sound which some BMW enthusiasts crave and cannot be provided by a street legal exhaust system. This race only remake of the stock exhaust results in a G80/G82 with a loud, deep and aggressive sound. You will feel the thrill of driving a race car when the throttle is opened.

This exhaust system upgrade was designed and engineered to replace the entire exhaust system with only no cuts needed in the stock exhaust. It is a bolt-on that can be performed by most and the stock exhaust can be reinstated if needed.

This system provides the maximum flow available and provides a race car growl expected but not often realized from a BMW M-Series car. The resonators reduce some of the rasp from the S58 engine without compromising the wide-open sound.

The Active Autowerke race only exhaust system is constructed of 100% 304 brushed stainless steel and has a industry standard warranty against rust. This latest addition to the Signature line up is a must for the true Enthusiast looking for a better sounding car to match amazing performance.

Features:

  • Durable 100% 304 Stainless Steel
  • No cuts needed with Factory Style Flanges and clamps
  • Install using factory style fittings
  • One year warranty
  • Replaces stock exhaust for race sound and maximum flow.
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: 15998498305

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Dan K.
New York, US
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid. This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush. Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it. If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
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Reviewed in the United States on November 11, 2025
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Mike S.
Chelsea, US
★★★★★ 5
Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable. The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather. One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with. Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
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Reviewed in the United States on March 12, 2023
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Marie Phillips
Massapequa, US
★★★★★ 4
Heavy-Duty That Works!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
This extreme sound deadening mat performs well for reducing road noise and vibration. It feels dense and adheres securely when properly applied. Once installed, it noticeably improves interior quietness. Overall, it’s a strong choice for more serious sound insulation projects.
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Reviewed in the United States on May 12, 2026
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J Whitehead
Pawtucket, US
★★★★★ 5
Good product, quite sticky I must say.
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Worked for my van insulation
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Reviewed in the United States on June 1, 2026
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David Spencer
Bozeman, US
★★★★★ 5
Good stuff
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Good stuff, easy to use, self adhesive backing contours around curves easily and works great.
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Reviewed in the United States on April 29, 2026

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