KYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe
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$440.00
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KYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe
$440.00
Factory direct: Delivery time varies by availability. Contact us for an estimate before ordering.
KYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe
Bring a more aggressive exhaust character to your BMW M3 or M4 with the KYOSTAR Fat Boy Single Midpipe Exhaust. Designed for compatible 2021 and newer BMW G80/G81 M3 and G82/G83 M4 Competition applications, this performance-oriented midpipe provides an aftermarket alternative to the factory center exhaust section.
Built around a single-pipe center exhaust configuration, the KYOSTAR Fat Boy Midpipe is intended for BMW enthusiasts looking to change the sound and character of their S58-powered M car without replacing the entire exhaust system.
Featuring a distinctive metal tubing layout and performance-inspired routing, this midpipe is designed to complement compatible BMW M3 and M4 exhaust configurations. Whether you're upgrading a daily-driven M3 or building a modified M4 Competition, the KYOSTAR Fat Boy Single Midpipe offers a focused center-section exhaust upgrade.
Features
- Fat Boy single midpipe exhaust configuration for compatible BMW M3 and M4 applications.
- Designed for selected BMW G80/G81 M3 and G82/G83 M4 Competition models.
- Intended for BMW S58 3.0L twin-turbocharged inline-six applications.
- Single-pipe center-section design.
- Aftermarket replacement for the compatible factory exhaust midsection.
- Performance-focused exhaust routing as shown in the product image.
- Designed for enthusiasts seeking a different exhaust tone and character.
- Midpipe upgrade without replacing the complete exhaust system.
- Distinctive Fat Boy product configuration.
- Metal exhaust tubing construction with a silver-colored finish as shown.
- Vehicle-specific center exhaust layout for listed applications.
- Suitable for compatible street-performance and modified BMW M builds.
Fitment
BMW M3:
- 2021+ BMW M3 Sedan (G80) — verify exhaust configuration.
- BMW M3 Touring (G81) — verify applicable model year and exhaust configuration.
BMW M4 Competition:
- 2021+ BMW M4 Competition Coupe (G82).
- 2021+ BMW M4 Competition Convertible (G83).
Engine Platform: BMW S58 3.0L Twin-Turbocharged Inline-Six
Exhaust Section: Center Midpipe
Important Fitment Note
Please verify your BMW chassis code, production year, engine configuration, and factory exhaust layout before ordering.
This product is listed for compatible BMW G80/G81 M3 and G82/G83 M4 Competition applications. Exact compatibility with different trim levels, factory exhaust options, and regional configurations should be confirmed before purchase.
BMW G81 M3 Touring production and market availability differ from the general 2021+ range shown in the source listing. Please verify the specific vehicle year.
Compatibility with BMW G87 M2, M340i, M440i, or other BMW models is not confirmed by the supplied product information.
Vehicles equipped with aftermarket downpipes, modified exhaust systems, or non-factory center exhaust components may require additional fitment verification.
Fitment Note
The KYOSTAR Fat Boy Single Midpipe is intended for compatible BMW G8X M3 and M4 exhaust applications equipped with the S58 engine.
A midpipe is the center section of an exhaust system, connecting the upstream exhaust components to the downstream rear exhaust assembly.
The single-midpipe configuration changes the layout of the factory center exhaust section and may alter the vehicle's exhaust sound and character.
Actual exhaust tone, volume, and driving experience will depend on the factory or aftermarket downpipes, rear muffler, exhaust valves, and other modifications.
Before installation, verify the upstream and downstream connection locations, exhaust hanger arrangement, pipe clearance, and compatibility with the vehicle's existing exhaust system.
The supplied specifications do not establish the exact pipe diameter, metal grade, wall thickness, weight, included clamps, or verified horsepower and torque gains.
This product should not be assumed to fit every factory or aftermarket exhaust configuration without additional verification.
Professional installation is recommended. Exhaust fabrication or modification requirements, if any, should be confirmed for the specific vehicle before purchase.
Product Details
| Item | Details |
|---|---|
| Brand | KYOSTAR |
| SKU | NA-MP-5093-SS-MB |
| Product Name | Fat Boy Single Midpipe |
| Product Type | Performance Exhaust Midpipe |
| Vehicle Make | BMW |
| Compatible Models | M3 / M4 Competition |
| Chassis | G80 / G81 / G82 / G83 |
| Listed Model Years | 2021+ (as applicable) |
| Engine Platform | S58 3.0L Twin-Turbo Inline-Six |
| Exhaust Type | Single Midpipe |
| Product Configuration | Fat Boy |
| Installation Area | Center Exhaust Section |
| Finish | Silver-Colored Metal Appearance |
| Material Grade | Not Specified |
| Pipe Diameter | Not Specified |
| Application | Center Exhaust Upgrade |
| Package Includes | Midpipe Assembly as Shown; Exact Hardware to Be Confirmed |
| Installation | Professional Installation Recommended |
Why Upgrade Your Factory Midpipe?
The factory BMW M3 and M4 exhaust system is designed to balance exhaust sound, emissions requirements, everyday drivability, and vehicle refinement.
Replacing the compatible factory center exhaust section with a performance midpipe changes the exhaust routing and can create a different sound character.
The KYOSTAR Fat Boy Single Midpipe is intended for enthusiasts who want to personalize their BMW M car's exhaust experience while retaining compatible upstream and rear exhaust components.
Actual sound changes depend on the complete exhaust configuration. No specific sound level, horsepower increase, or torque gain is claimed without supporting test data.
FAQ
Q: What BMW models does this midpipe fit?
A: It is listed for compatible BMW G80/G81 M3 and G82/G83 M4 Competition applications.
Q: Will this fit a BMW G80 M3?
A: The G80 M3 is included in the listed applications. Verify the production year and factory exhaust configuration before ordering.
Q: Will this fit a BMW G82 M4 Competition?
A: Yes, compatible G82 M4 Competition applications are listed.
Q: Will this fit a BMW G81 M3 Touring?
A: G81 M3 Touring is included in the source fitment information. Verify the exact model year and exhaust configuration before purchase.
Q: What is a single midpipe?
A: A single midpipe uses a single main pipe section within the center exhaust layout, replacing the compatible factory midsection.
Q: What does Fat Boy mean?
A: Fat Boy is the product's listed configuration name. The exact pipe diameter is not provided.
Q: Is this a full exhaust system?
A: No. This is a center exhaust midpipe, not a complete catback or axleback system.
Q: Will this make my BMW louder?
A: A performance midpipe can change exhaust sound and volume. Actual results depend on the rest of the exhaust system.
Q: Is this made from stainless steel?
A: The supplied product information does not explicitly confirm the material grade. Please verify the material specification before ordering.
Q: What is the pipe diameter?
A: The exact pipe diameter is not specified in the supplied product information.
Q: Does this increase horsepower?
A: No verified dyno data is provided, so no specific horsepower or torque gain is claimed.
Q: Will this work with factory downpipes?
A: Compatibility with the existing upstream exhaust connections should be verified before purchase.
Q: Will this work with an aftermarket axleback exhaust?
A: Compatibility depends on the connection dimensions and exhaust configuration. Additional verification may be required.
Q: Does this require ECU tuning?
A: A tuning requirement is not specified. Consult a qualified installer regarding your complete vehicle configuration.
Q: Is professional installation recommended?
A: Yes. Professional installation is recommended to ensure correct alignment, secure connections, and adequate clearance.
Installation Note
Allow the exhaust system to cool completely before installation. Securely raise and support the vehicle using appropriate lifting equipment and manufacturer-approved lifting points.
Inspect the existing center exhaust assembly and verify that the KYOSTAR midpipe matches the intended connection locations and routing.
Install the midpipe using the appropriate connection hardware and installation procedures for the specific vehicle.
After installation, inspect all exhaust joints, mounting points, hanger positions, and nearby components. Check for exhaust leaks, vibration, and interference before normal driving.
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 accessories, 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-MP-5093-SS-MB and your intended BMW application.
Exhaust noise and modification regulations vary by location. Please confirm applicable local requirements before installation or road use.
For fitment assistance, installation questions, shipping information, or after-sales support, please contact KYOSTAR customer service.
KYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe
Bring a more aggressive exhaust character to your BMW M3 or M4 with the KYOSTAR Fat Boy Single Midpipe Exhaust. Designed for compatible 2021 and newer BMW G80/G81 M3 and G82/G83 M4 Competition applications, this performance-oriented midpipe provides an aftermarket alternative to the factory center exhaust section.
Built around a single-pipe center exhaust configuration, the KYOSTAR Fat Boy Midpipe is intended for BMW enthusiasts looking to change the sound and character of their S58-powered M car without replacing the entire exhaust system.
Featuring a distinctive metal tubing layout and performance-inspired routing, this midpipe is designed to complement compatible BMW M3 and M4 exhaust configurations. Whether you're upgrading a daily-driven M3 or building a modified M4 Competition, the KYOSTAR Fat Boy Single Midpipe offers a focused center-section exhaust upgrade.
Features
- Fat Boy single midpipe exhaust configuration for compatible BMW M3 and M4 applications.
- Designed for selected BMW G80/G81 M3 and G82/G83 M4 Competition models.
- Intended for BMW S58 3.0L twin-turbocharged inline-six applications.
- Single-pipe center-section design.
- Aftermarket replacement for the compatible factory exhaust midsection.
- Performance-focused exhaust routing as shown in the product image.
- Designed for enthusiasts seeking a different exhaust tone and character.
- Midpipe upgrade without replacing the complete exhaust system.
- Distinctive Fat Boy product configuration.
- Metal exhaust tubing construction with a silver-colored finish as shown.
- Vehicle-specific center exhaust layout for listed applications.
- Suitable for compatible street-performance and modified BMW M builds.
Fitment
BMW M3:
- 2021+ BMW M3 Sedan (G80) — verify exhaust configuration.
- BMW M3 Touring (G81) — verify applicable model year and exhaust configuration.
BMW M4 Competition:
- 2021+ BMW M4 Competition Coupe (G82).
- 2021+ BMW M4 Competition Convertible (G83).
Engine Platform: BMW S58 3.0L Twin-Turbocharged Inline-Six
Exhaust Section: Center Midpipe
Important Fitment Note
Please verify your BMW chassis code, production year, engine configuration, and factory exhaust layout before ordering.
This product is listed for compatible BMW G80/G81 M3 and G82/G83 M4 Competition applications. Exact compatibility with different trim levels, factory exhaust options, and regional configurations should be confirmed before purchase.
BMW G81 M3 Touring production and market availability differ from the general 2021+ range shown in the source listing. Please verify the specific vehicle year.
Compatibility with BMW G87 M2, M340i, M440i, or other BMW models is not confirmed by the supplied product information.
Vehicles equipped with aftermarket downpipes, modified exhaust systems, or non-factory center exhaust components may require additional fitment verification.
Fitment Note
The KYOSTAR Fat Boy Single Midpipe is intended for compatible BMW G8X M3 and M4 exhaust applications equipped with the S58 engine.
A midpipe is the center section of an exhaust system, connecting the upstream exhaust components to the downstream rear exhaust assembly.
The single-midpipe configuration changes the layout of the factory center exhaust section and may alter the vehicle's exhaust sound and character.
Actual exhaust tone, volume, and driving experience will depend on the factory or aftermarket downpipes, rear muffler, exhaust valves, and other modifications.
Before installation, verify the upstream and downstream connection locations, exhaust hanger arrangement, pipe clearance, and compatibility with the vehicle's existing exhaust system.
The supplied specifications do not establish the exact pipe diameter, metal grade, wall thickness, weight, included clamps, or verified horsepower and torque gains.
This product should not be assumed to fit every factory or aftermarket exhaust configuration without additional verification.
Professional installation is recommended. Exhaust fabrication or modification requirements, if any, should be confirmed for the specific vehicle before purchase.
Product Details
| Item | Details |
|---|---|
| Brand | KYOSTAR |
| SKU | NA-MP-5093-SS-MB |
| Product Name | Fat Boy Single Midpipe |
| Product Type | Performance Exhaust Midpipe |
| Vehicle Make | BMW |
| Compatible Models | M3 / M4 Competition |
| Chassis | G80 / G81 / G82 / G83 |
| Listed Model Years | 2021+ (as applicable) |
| Engine Platform | S58 3.0L Twin-Turbo Inline-Six |
| Exhaust Type | Single Midpipe |
| Product Configuration | Fat Boy |
| Installation Area | Center Exhaust Section |
| Finish | Silver-Colored Metal Appearance |
| Material Grade | Not Specified |
| Pipe Diameter | Not Specified |
| Application | Center Exhaust Upgrade |
| Package Includes | Midpipe Assembly as Shown; Exact Hardware to Be Confirmed |
| Installation | Professional Installation Recommended |
Why Upgrade Your Factory Midpipe?
The factory BMW M3 and M4 exhaust system is designed to balance exhaust sound, emissions requirements, everyday drivability, and vehicle refinement.
Replacing the compatible factory center exhaust section with a performance midpipe changes the exhaust routing and can create a different sound character.
The KYOSTAR Fat Boy Single Midpipe is intended for enthusiasts who want to personalize their BMW M car's exhaust experience while retaining compatible upstream and rear exhaust components.
Actual sound changes depend on the complete exhaust configuration. No specific sound level, horsepower increase, or torque gain is claimed without supporting test data.
FAQ
Q: What BMW models does this midpipe fit?
A: It is listed for compatible BMW G80/G81 M3 and G82/G83 M4 Competition applications.
Q: Will this fit a BMW G80 M3?
A: The G80 M3 is included in the listed applications. Verify the production year and factory exhaust configuration before ordering.
Q: Will this fit a BMW G82 M4 Competition?
A: Yes, compatible G82 M4 Competition applications are listed.
Q: Will this fit a BMW G81 M3 Touring?
A: G81 M3 Touring is included in the source fitment information. Verify the exact model year and exhaust configuration before purchase.
Q: What is a single midpipe?
A: A single midpipe uses a single main pipe section within the center exhaust layout, replacing the compatible factory midsection.
Q: What does Fat Boy mean?
A: Fat Boy is the product's listed configuration name. The exact pipe diameter is not provided.
Q: Is this a full exhaust system?
A: No. This is a center exhaust midpipe, not a complete catback or axleback system.
Q: Will this make my BMW louder?
A: A performance midpipe can change exhaust sound and volume. Actual results depend on the rest of the exhaust system.
Q: Is this made from stainless steel?
A: The supplied product information does not explicitly confirm the material grade. Please verify the material specification before ordering.
Q: What is the pipe diameter?
A: The exact pipe diameter is not specified in the supplied product information.
Q: Does this increase horsepower?
A: No verified dyno data is provided, so no specific horsepower or torque gain is claimed.
Q: Will this work with factory downpipes?
A: Compatibility with the existing upstream exhaust connections should be verified before purchase.
Q: Will this work with an aftermarket axleback exhaust?
A: Compatibility depends on the connection dimensions and exhaust configuration. Additional verification may be required.
Q: Does this require ECU tuning?
A: A tuning requirement is not specified. Consult a qualified installer regarding your complete vehicle configuration.
Q: Is professional installation recommended?
A: Yes. Professional installation is recommended to ensure correct alignment, secure connections, and adequate clearance.
Installation Note
Allow the exhaust system to cool completely before installation. Securely raise and support the vehicle using appropriate lifting equipment and manufacturer-approved lifting points.
Inspect the existing center exhaust assembly and verify that the KYOSTAR midpipe matches the intended connection locations and routing.
Install the midpipe using the appropriate connection hardware and installation procedures for the specific vehicle.
After installation, inspect all exhaust joints, mounting points, hanger positions, and nearby components. Check for exhaust leaks, vibration, and interference before normal driving.
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 accessories, 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-MP-5093-SS-MB and your intended BMW application.
Exhaust noise and modification regulations vary by location. Please confirm applicable local requirements before installation or road use.
For fitment assistance, installation questions, shipping information, or after-sales support, please contact KYOSTAR customer service.