Dial in the perfect balance of volume and tone with the IRL G05 X5 40i catback. It opens up unrestricted flow and lifts power output while delivering an aggressive, sporty note — then drops to a more OEM-style tone at the push of a button. The whole system is built from T304 stainless steel and TIG welded for a clean, polished finish.

Features

• Significant horsepower and torque gains
• Larger diameter piping for increased flow
• IRL valve controller to maximize the system's potential
• 100% T304 stainless steel construction
• Simple, factory-like installation with included mounting hardware

Professional installation recommended.

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.