IRL

IRL Full Modular Catback | BMW M3/M4 G8x

SKU: MS-6171-IRL-IRL L-STA-1
$4,699.95 AUD
Catback Type
Catback Size
Tip Colour

The IRL Full Modular Catback is the ultimate performance upgrade for your BMW M3 or M4 (G8x). Building on the success of our Modular Midpipe, this system is engineered to maximize exhaust flow with a true single layout. Available in stainless steel or titanium, it delivers performance gains you can feel.

Designed for those pushing the limits, the IRL Full Modular Catback strikes the perfect balance of power, sound, and precision — without sacrificing drivability.

Key Benefits:

  • 13–25% increase in flow (depending on downpipe setup)
  • Significant weight savings with titanium
  • Controlled cold starts via single-valve system

Note: Modular Catback does not include a valve controller kit.

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

Professional installation is recommended.

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.