IRL Full Modular Catback

Meet the IRL Full Modular Catback — the top-tier exhaust upgrade for the G80 M3. Building on the proven Modular Midpipe, this system is engineered to maximize flow with a true single layout. Offered in stainless steel or titanium, it delivers gains you can genuinely feel.

Designed for drivers pushing the limits, it strikes the balance of power, sound, and precision without giving up daily drivability.

Key benefits

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

Engineered for enthusiasts who demand more, with no compromise on how it drives every day.

Emissions disclaimer: This product is intended for off-road, race, or closed-course competition use only and is not legal for use on pollution-controlled vehicles operated on public roads in most states and provinces. You are responsible for compliance with all applicable emissions laws. Please check your local laws before purchase and installation.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.