BMW G01, X3,X4 M40i 3.0L Catback, T304 SS, Black 3.5" Tips

At Valvetronic Designs, we believe enthusiasts deserve the ultimate driving and sound experience. That’s why our pursuit of perfection for the G01 platform has resulted in one of our finest exhaust systems to date. Engineered using lessons from our most successful designs, this system utilizes the maximum possible piping diameter to unlock a raw, unfiltered sound when the valves are open. The result? Explosive turbo spool, aggressive overrun, and an addictive tone that sings from idle to redline.

• Brushed T304 stainless steel
• Fully mandrel bent for maximum flow efficiency With 3.5-ince Midpipe for optimal flow and sound
• Electronic standalone valve controller
• 25.5 lbs lighter than the factory exhaust
• Paired With Valvetronic Designs Black Single Wall Tips

What's Included

Valved catback exhaust system, Valve controller kit included, and black Valvetronic tips

Features & Components

Beyond the sound, this exhaust delivers improved exhaust flow, contributing to sharper throttle response and enhanced driving dynamics. The precision-engineered 3.5-inch midpipe ensures maximum flow for the B58 engine to breathe freely.

Installation Notes

Direct bolt-on installation cat-back replacement to OEM mounting points,

Fitment

2018-2025 BMW X3 M40i, X4 M40i

Our turbo specifications are built for maximum durability under high load. Check the manual for exact torque tolerances.

In-stock items ship within 24-48 business hours. Orders over $599 qualify for free standard ground shipping in the contiguous US.

We accept returns on unused items in original packaging within 30 days. Contact our support team for an RMA.