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IRL G8X Downpipes BMW M2 M3 M4 S58 (2021-2025) G80 G82 G87 EPA Compliant 400 Cell Catted
Fitment Information
- BMW M2 G87 Coupe S58 3.0L Twin Turbo (2023, 2024, 2025), RWD
- BMW M3 G80 Sedan S58 3.0L Twin Turbo (2021, 2022, 2023, 2024, 2025), RWD and xDrive
- BMW M3 G81 Touring S58 3.0L Twin Turbo (2023, 2024, 2025), RWD and xDrive
- BMW M4 G82 Coupe S58 3.0L Twin Turbo (2021, 2022, 2023, 2024, 2025), RWD and xDrive
- BMW M4 G83 Convertible S58 3.0L Twin Turbo (2021, 2022, 2023, 2024, 2025), RWD and xDrive
- Note: EPA compliant but not CARB compliant. Street legal in 49 states. Does not ship to California
Fitment Note: These downpipes fit the S58 twin-turbo inline-6 across all G8X M variants, covering the M2 G87, M3 G80/G81, and M4 G82/G83 in both RWD and xDrive configurations. These are EPA compliant and street legal in 49 states but are not CARB compliant and do not ship to California. No tune is required on factory-tuned vehicles. Sold as a pair.
Specs and Features
- 30 HP gain with stock turbos, dyno proven
- EPA compliant 400 cell high-flow catalytic converters, street legal in 49 states excluding California
- No tune required on factory-tuned vehicles
- No check engine light on factory ECU
- Key distinction from the standard IRL 400 CEL race/track downpipes: this EPA compliant version is street legal and requires no tune, while the standard version is track use only and requires a tune
- 3.5 inch piping diameter
- AISI 304 stainless steel construction throughout
- Flex pipe section included to reduce stress and vibration at the downpipe connection
- Oxygen sensor ports included for proper sensor retention
- All necessary fasteners included
- Faster turbo spool and reduced backpressure compared to stock catalytic converters
- Does not ship to California
Pairs well with:
- IRL V2 Exhaust Valve Controller for BMW G80 M3 / G82 M4 / G87 M2 These EPA compliant downpipes open up the exhaust path right out of the turbos. Pairing them with the IRL V2 Valve Controller lets you open the factory exhaust valves to 100% on demand, giving you full control over sound character from the same brand alongside the performance gain these downpipes provide.
IRL G8X Downpipes BMW M2 M3 M4 S58 (2021-2025) G80 G82 G87 EPA Compliant 400 Cell Catted—
Description
Fitment Information
- BMW M2 G87 Coupe S58 3.0L Twin Turbo (2023, 2024, 2025), RWD
- BMW M3 G80 Sedan S58 3.0L Twin Turbo (2021, 2022, 2023, 2024, 2025), RWD and xDrive
- BMW M3 G81 Touring S58 3.0L Twin Turbo (2023, 2024, 2025), RWD and xDrive
- BMW M4 G82 Coupe S58 3.0L Twin Turbo (2021, 2022, 2023, 2024, 2025), RWD and xDrive
- BMW M4 G83 Convertible S58 3.0L Twin Turbo (2021, 2022, 2023, 2024, 2025), RWD and xDrive
- Note: EPA compliant but not CARB compliant. Street legal in 49 states. Does not ship to California
Fitment Note: These downpipes fit the S58 twin-turbo inline-6 across all G8X M variants, covering the M2 G87, M3 G80/G81, and M4 G82/G83 in both RWD and xDrive configurations. These are EPA compliant and street legal in 49 states but are not CARB compliant and do not ship to California. No tune is required on factory-tuned vehicles. Sold as a pair.
Specs and Features
- 30 HP gain with stock turbos, dyno proven
- EPA compliant 400 cell high-flow catalytic converters, street legal in 49 states excluding California
- No tune required on factory-tuned vehicles
- No check engine light on factory ECU
- Key distinction from the standard IRL 400 CEL race/track downpipes: this EPA compliant version is street legal and requires no tune, while the standard version is track use only and requires a tune
- 3.5 inch piping diameter
- AISI 304 stainless steel construction throughout
- Flex pipe section included to reduce stress and vibration at the downpipe connection
- Oxygen sensor ports included for proper sensor retention
- All necessary fasteners included
- Faster turbo spool and reduced backpressure compared to stock catalytic converters
- Does not ship to California
Pairs well with:
- IRL V2 Exhaust Valve Controller for BMW G80 M3 / G82 M4 / G87 M2 These EPA compliant downpipes open up the exhaust path right out of the turbos. Pairing them with the IRL V2 Valve Controller lets you open the factory exhaust valves to 100% on demand, giving you full control over sound character from the same brand alongside the performance gain these downpipes provide.
