




ZERRA ATC Full Valved Exhaust System – BMW M3 G80/G81 & M4 G82/G83
IMPORTANT: Prices include VAT for EU customers. For non-EU customers, prices are shown without taxes. Local taxes and duties are payable upon delivery. Please select your correct country/region at the top of the page.
PREORDER NOW - Deliveries starting in October 2026
The S58, re-engineered to sound right.
The ZERRA ATC Full Valved Exhaust System was created to give the BMW S58 engine the deep, clean and distinctive soundtrack it deserves.
Rather than simply increasing volume, the system uses our proprietary Acoustic T-Chamber (ATC) architecture to shape the exhaust note and control the frequencies responsible for the metallic rasp and unwanted resonance commonly associated with the S58.
The result is a richer, more defined exhaust character: refined when cruising and intensely aggressive under load.
At the rear, our signature full-CNC-machined exhaust tips give the system an unmistakable visual identity. Every detail has been designed specifically for the G8X platform, combining acoustic engineering, precision manufacturing and the distinctive ZERRA design language.
Key features
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Complete exhaust system from the original downpipes rearwards
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Proprietary ZERRA Acoustic T-Chamber technology
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Engineered for a deeper, cleaner and more defined S58 soundtrack
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Designed to reduce metallic rasp and unwanted cabin resonance
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Premium 89 mm ASR Component exhaust valve
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Full-CNC-machined ZERRA signature exhaust tips
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High-grade stainless-steel construction
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Precision TIG-welded and handcrafted in Romania
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Large-diameter, performance-oriented exhaust routing
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Valve-closed mode for a more controlled and comfortable sound
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Valve-open mode for maximum flow and an aggressive exhaust character
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Direct bolt-on installation
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Two-year limited warranty
Acoustic T-Chamber
At the heart of the system is the ZERRA ATC muffler, an acoustic architecture developed to achieve more than conventional straight-through mufflers.
The internal geometry is engineered to control undesirable sound frequencies while preserving exhaust flow and the natural character of the S58 engine. This allows the system to produce depth and definition without relying solely on excessive volume.
Less rasp. Less resonance. More character.
Signature full-CNC tips
The exhaust is completed by four tips machined entirely from solid material. Unlike conventional tips assembled from thin tubing and generic carbon sleeves, the ZERRA tips are designed as structural visual components.
Their precise surfaces, three-dimensional geometry and substantial construction create a rear-end appearance that is immediately recognisable as ZERRA.
ASR Component 89 mm exhaust valve
Sound control is managed by a premium exhaust valve supplied by ASR Component. Its large internal diameter supports unrestricted exhaust flow in the open position while allowing the system to maintain a more restrained character when closed.
This gives the driver two clearly differentiated personalities:
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Valve closed: deeper, controlled and suitable for relaxed driving
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Valve open: unrestricted, powerful and engaging sound
Handcrafted by ZERRA Performance
Every system is manufactured and TIG-welded at ZERRA Performance in Romania. Each assembly is carefully inspected for fitment, alignment and finish before receiving its individual identification plate.
This is not a mass-produced replacement exhaust. It is a limited-production acoustic and visual upgrade created for owners who want their M3 to sound and look genuinely different.
Vehicle compatibility
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BMW M3 G80
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BMW M3 Touring G81
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BMW M4 G82
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Rear-wheel-drive and xDrive versions
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OPF/GPF and non-OPF compatibility depending on selected configuration
Please provide the vehicle model, production year and market specification when ordering.
Professional installation is recommended. Installation is not included in the product price.
Important notice
This exhaust system is currently not ECE type-approved. It is intended for motorsport, competition and off-road use, or for use where permitted by local legislation.
The customer is responsible for verifying the legal requirements applicable in the country where the vehicle is registered and operated.

ZERRA ATC Full Valved Exhaust System – BMW M3 G80/G81 & M4 G82/G83
IMPORTANT - Read below:
Engine tuning
When upgrading to a performance exhaust system, ECU calibration is mandatory. Any exhaust produced by Zerra Performance must be used together with a proper ECU remap or a compatible EFI tuning device to ensure the engine operates within safe parameters.
Running the engine without the correct adjustments can create an excessively lean mixture, increasing the risk of internal damage. Always configure your fuel management system according to the tuner manufacturer’s specifications to maintain an optimal air-fuel ratio.
Operating a Zerra Performance exhaust without appropriate tuning will automatically cancel the product warranty, and any engine-related problems caused by improper calibration will not qualify for warranty coverage.
Shipping time
If a product is in stock:
- Europe: 4-7 days
- International: 4-15 days
If a product is not in stock:
- Please contact us for availability.
Road homologation
Our products are not homologated for street use and are only designed for off-road applications. Using them on public roads is strictly done at your own risk.
Zerra Performance and its parent company Flowline SRL are not responsible for any law violations derived from using the products on public roads.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
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Customer Support
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FAQ’s
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Contact Us
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Handcrafted in Romania
Zerra Performance products are handcrafted by our experienced fabricators using the best quality materials.
Full stainless steel / aluminium build
We only choose durable, corrosion resistant materials in our exhausts. Every element, from tubes to rivets must withstand years of abuse.
Remarkable sound & design
We focus on developing exciting new designs and improving the sound experience for every machine.
2-Year Warranty
Every Zerra Performance product is backed by a 2-year warranty against manufacturing and material defects.
FAQs
Do I need EFI tuning?
We recommend using an aftermarket fuel tuner with our exhaust systems to keep the engine from running too lean and to get the maximum performance from your machine.
Can I use the exhaust on the road?
Our products are not homologated for street use and are only designed for off-road applications. Using them on public roads is strictly done at your own risk. Zerra Performance and its parent company Flowline SRL are not responsible for any law violations derived from using the products on public roads.
How long does it take for delivery?
If a product is in stock:
- Europe: 4-7 days
- International: 4-15 days
If a product is not in stock:
- Please contact us for availability.
Can you fit a silencer (quiet core insert) into the exhaust?
All Zerra models that come with the HEX tip can be fitted with a quiet core (silencer) insert.
