IRL Downpipes | BMW M2/M3/M4 G8x 2021+

Upgrade your BMW M2, M3, or M4 (G8x) with IRL downpipes, engineered to alleviate backpressure from the stock catalytic converters. By switching to our downpipes, your turbos spool faster and reach peak power sooner — a tuned S58 can see up to a 30HP boost with stock turbos.

The flex pipe section reduces strain and vibration caused by the downpipes, while smooth, optimized bends maximize airflow for consistent performance gains.

Key Features:

• Reduces backpressure for faster turbo spool and increased power
• Flex pipe section minimizes strain and vibration
• Smooth-bend design for optimal airflow
• Professional installation recommended

Important: Resonated, catless, and 200-cell downpipes will trigger a Check Engine Light.

Fitment: BMW M2 (G87), M3 (G80/G81), M4 (G82/G83)

This product is intended for off-road and motorsport use only. It is the customer's responsibility to ensure compliance with local laws and regulations prior to use. IRL LLC is not responsible for use of this product outside its intended purpose.

Special Order Item

This product is imported from overseas specifically for your order.

The listed price includes shipping to Australia unless otherwise stated.

Please note: Import duties, GST, customs clearance fees and any other charges assessed upon arrival in Australia are not included and remain the responsibility of the purchaser.

Important Information:

This product is intended for performance use and should be installed by a qualified professional.

It is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.

Gridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.

Due to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.