KYOSTAR Equal Length Valved Catback Exhaust System for 2014-2020 BMW F80 M3 F82 F83 M4 S55 3.0L Twin Turbo

KYOSTAR Equal Length Valved Catback Exhaust System for 2014-2020 BMW F80 M3 F82 F83 M4 S55 3.0L Twin Turbo

Give your BMW M3 or M4 a more distinctive exhaust character with the KYOSTAR Equal Length Valved Sport Catback Exhaust System. Listed for compatible 2014-2020 BMW F80 M3 and F82/F83 M4 applications, this aftermarket exhaust system combines an equal-length pipe design with a valved exhaust configuration.

Designed for BMW M enthusiasts who want to personalize their vehicle's exhaust setup, the KYOSTAR system features shaped metal piping, an equal-length exhaust layout, and a valved rear exhaust section as identified in the supplied product information.

The equal-length design is intended to provide a different exhaust routing configuration compared with conventional unequal-length systems. The valved exhaust configuration provides an additional exhaust-flow control element, although the exact valve actuation and control method must be confirmed before purchase.

Whether you're upgrading a BMW F80 M3 Sedan, F82 M4 Coupe, or F83 M4 Convertible, this performance exhaust system offers a distinctive aftermarket exhaust configuration for compatible BMW M applications.

Features

• Equal-length valved sport exhaust system for compatible BMW F80 M3 and F82/F83 M4 applications.
• Listed for 2014-2020 BMW M3 and M4 models within the supplied fitment range.
• Designed for the BMW F80/F82/F83 M performance platform.
• Equal-length exhaust pipe configuration as identified in the product specifications.
• Valved exhaust system design.
• Aftermarket alternative to compatible factory exhaust components.
• Shaped metal exhaust piping visible in the product image.
• Rear muffler assembly visible in the supplied product image.
• Dual-side rear exhaust outlet configuration.
• Silver-colored metal exhaust appearance.
• Performance-inspired exhaust layout for BMW M enthusiasts.
• Designed for owners seeking a different exhaust tone and character.
• Vehicle-specific exhaust configuration for the listed BMW chassis.
• Professional installation and valve-system compatibility verification recommended.

Fitment

BMW M3:

• 2014-2020 BMW M3 Sedan (F80) — as applicable to model year and production configuration.

BMW M4:

• 2014-2020 BMW M4 Coupe (F82) — as applicable to model year and production configuration.
• 2014-2020 BMW M4 Convertible (F83) — as applicable to model year and production configuration.

Chassis: BMW F80 / F82 / F83

Engine Platform: BMW S55 3.0L Twin-Turbo Inline-Six (platform reference; verify vehicle configuration)

Exhaust Configuration: Equal Length / Valved Sport Exhaust

Important Fitment Note

Please verify your BMW chassis code, production year, factory exhaust configuration, and exhaust connection layout before ordering.

This product is listed for compatible BMW F80 M3 and F82/F83 M4 applications within the source-listed 2014-2020 range.

The listed model-year range does not establish that every model or body style was produced in every year.

Compatibility with BMW F87 M2, F87 M2 Competition, G80/G81 M3, G82/G83 M4, standard BMW 3 Series or 4 Series models, and other BMW platforms is not confirmed.

Vehicles equipped with aftermarket downpipes, modified exhaust components, or non-factory valve systems may require additional fitment verification.

Before purchase, confirm the upstream and downstream exhaust connections, exhaust hanger positions, underbody clearance, and rear bumper tip alignment.

The supplied information does not confirm whether factory valve actuators are reused or whether a separate electronic or remote valve controller is included.

Fitment Note

The KYOSTAR Equal Length Valved Sport Catback Exhaust System is intended for compatible BMW F80 M3 and F82/F83 M4 applications.

A catback exhaust system generally refers to the exhaust components installed downstream of the catalytic converter section. The exact included pipe sections for this product should be verified against the complete package contents.

This product is described as an equal-length exhaust system. The supplied specifications do not provide independently measured individual pipe lengths or detailed engineering drawings.

The system is also identified as valved. Exhaust valves can change the available exhaust flow path depending on their operating position, but the exact control mechanism and operating behavior of this product are not specified.

Replacing factory exhaust components may change exhaust tone, volume, and driving characteristics. Actual results depend on the complete exhaust configuration, including downpipes, rear mufflers, exhaust valves, and other modifications.

The supplied specifications do not establish the exact pipe diameter, metal grade, valve actuator type, control method, system weight, measured sound level, or tested horsepower and torque gains.

No specific numerical performance improvement is claimed without supporting vehicle-specific testing.

Professional installation is recommended. Confirm the complete exhaust assembly, valve connections, and any required modifications before purchase.

Product Details & Technical Specifications

Why Upgrade Your Factory Exhaust?

The factory BMW F80 M3 and F82/F83 M4 exhaust systems are engineered to balance everyday drivability, exhaust sound, emissions requirements, and vehicle refinement.

An aftermarket equal-length exhaust system provides a different exhaust routing configuration for drivers looking to personalize their BMW M car.

The KYOSTAR Equal Length Valved Sport Catback Exhaust combines equal-length pipe routing with a valved exhaust design, offering a performance-inspired alternative to compatible factory exhaust components.

Actual sound changes and performance characteristics depend on the complete vehicle configuration. No specific sound level, horsepower increase, or torque gain is claimed without supporting test data.

FAQ

Q: What BMW models does this exhaust system fit?
A: It is listed for compatible 2014-2020 BMW F80 M3 and F82/F83 M4 applications.

Q: Will this fit a BMW F80 M3?
A: The F80 M3 is included in the listed applications. Verify the production year and exhaust configuration before ordering.

Q: Will this fit a BMW F82 M4 Coupe?
A: The F82 M4 Coupe is included in the listed applications. Confirm your vehicle's exhaust connection layout before purchase.

Q: Will this fit a BMW F83 M4 Convertible?
A: The F83 M4 Convertible is included in the listed applications. Please verify the factory exhaust configuration before ordering.

Q: Is this an equal-length exhaust system?
A: Yes. Equal Length is explicitly identified in the supplied product name.

Q: Does this exhaust have valves?
A: Yes. The product is identified as a valved exhaust system. The exact control method is not specified.

Q: Does it include a remote controller?
A: A remote controller is not confirmed in the supplied product information. Please verify the package contents before purchase.

Q: Can I use the factory exhaust valve actuators?
A: Factory actuator compatibility is not confirmed. Please verify before ordering.

Q: Is this a complete catback exhaust?
A: The source title identifies it as a catback system, but the exact included pipe sections should be confirmed before purchase.

Q: Will this change my BMW's exhaust sound?
A: An aftermarket exhaust may change exhaust tone and volume. Actual results depend on the complete exhaust setup.

Q: Is this made from stainless steel?
A: The supplied product information does not explicitly confirm the stainless steel grade or detailed material specification.

Q: What is the exhaust pipe diameter?
A: The exact pipe diameter is not specified.

Q: Will this fit a BMW F87 M2 Competition?
A: Compatibility with F87 M2 Competition applications is not confirmed.

Q: Does this increase horsepower?
A: No verified dyno data is provided, so no specific horsepower or torque gain is claimed.

Q: Does this require ECU tuning?
A: A tuning requirement is not specified. Please verify based on the vehicle and existing modifications.

Q: Is professional installation recommended?
A: Yes. Professional installation is recommended to ensure correct exhaust alignment, secure connections, and proper valve-system operation.

Installation Note

Allow the exhaust system to cool completely before beginning installation.

Securely raise and support the vehicle using appropriate lifting equipment and manufacturer-approved lifting points.

Inspect the factory exhaust system and verify that the KYOSTAR exhaust components match the intended connection points and mounting locations.

Install the exhaust components using the appropriate hardware and procedures for the specific vehicle.

If the system uses exhaust valve actuators or electronic control components, verify their compatibility and installation requirements before connecting or operating the valve system.

Before final tightening, confirm proper exhaust alignment, hanger positioning, and clearance from nearby underbody components.

After installation, inspect all exhaust joints, mounting points, and valve components. Check for exhaust leaks, rattles, vibration, and interference.

Professional installation is recommended.

Warranty & Shipping

Please review the applicable KYOSTAR warranty terms before purchasing. Warranty coverage, duration, and exclusions are subject to the policy in effect at the time of purchase.

Inspect the product upon delivery for visible shipping damage, missing components, or other concerns. Retain the original packaging and contact KYOSTAR customer support if an issue is identified.

Before installation, verify that the received product matches SKU NA-CB-5095-SS-MB and your intended BMW F80 M3 or F82/F83 M4 application.

Exhaust noise and modification regulations vary by location. Please confirm applicable local requirements before installation or road use.

For fitment assistance, valve-system questions, installation support, shipping information, or after-sales service, please contact KYOSTAR customer service.