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Active Autowerke F8X Signature rear section with valves and carbon over black quad tips

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Active Autowerke F80 M3 / F82 M4 Signature system laid out with black tips and hardware bags

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Active Autowerke F8X Signature rear section with brushed quad tips on a black cloth

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Active Autowerke F8X Signature rear section and mid pipes laid out side by side

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Active Autowerke F80 M3/F82 M4 Signature Exhaust System

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Brand: Active AutoWerkeSKU / Part #: 11-045B

Regular price: $3,556.42
Regular price: ~~$3,629.00~~
Sale price: $3,556.42
Unit price: per

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Subtotal: $3,556.42

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Active Autowerke F80 M3/F82 M4 Signature Exhaust System

Subtotal: $3,556.42

Not sure it fits? Text us your VINSee all fitment

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Overview

The Active Autowerke Signature exhaust is a full system for the BMW F80 M3 and F82 M4. It replaces the factory mid pipe and rear section with mandrel-bent stainless pipe, keeps the factory valve function and comes with the Active Autowerke F-brace.

Choose matte black or carbon fiber tips.

What It Does

The stock F8X exhaust uses a middle silencer with a small crossover and a rear muffler built for noise control. Together they are restrictive and make the uneven S55 sound worse. The Signature system replaces both with a freer-flowing, single mid pipe design and a valved rear section, for a deeper sound and less back pressure.

Materials and Construction

Mandrel-bent 304 stainless steel. The system uses the factory valve motor and needs no permanent changes. Tips are 90 mm double-walled and adjustable for a clean fit in the bumper. Active Autowerke builds each system to order, so allow 2-3 weeks before it ships.

Features

Complete valved system with mid pipe
Uses the factory valve motor
Mandrel-bent 304 stainless steel
Adjustable 90 mm double-walled tips
No permanent modifications
Active Autowerke F-brace included

Specs

Part numbers: 11-045B (matte black tips), 11-045C (carbon fiber tips)
Brand: Active Autowerke
Type: valved exhaust system with mid pipe
Material: 304 stainless steel
Engine: BMW S55 3.0L twin-turbo inline-six
Shipping weight (Active Autowerke): 109 lb (49.4 kg)

Video

Active Autowerke F8X M3 / M4 Signature Exhaust Fly-By

Active Autowerke M2 / M3 / M4 Signature Exhaust System in the Miami Tunnel

Fitment Notes

Active Autowerke lists this part for the F80 M3 sedan and F82 M4 coupe. The F83 M4 Convertible is not on its list, so contact us before ordering for that car.
This system includes its own mid pipe, so it is not used with the Active Autowerke single or equal length mid pipes.
Built to order: allow 2-3 weeks before shipping.
Questions before you order? Call or text (310) 231-0292 or email Online@AutoTalent.com.
See every Active Autowerke exhaust, the Active Autowerke mid pipes or the full Active Autowerke range.

FAQ

Do I need a separate mid pipe?
No. The Signature system includes it.

Do the factory valves still work?
Yes. It uses the factory valve motor.

Does the tip finish change the price?
Yes. Carbon fiber tips cost more than matte black.

Year	Make	Model	Chassis	Engine
2015-2018	BMW	M3	F80	3.0L Twin-Turbo I6 (S55)
2015-2020	BMW	M4 Coupe	F82	3.0L Twin-Turbo I6 (S55)

Fitment

Year	Make	Model
2015–2018	BMW	M3
2015–2020	BMW	M4

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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