BMW M340i/M440i Valved Exhaust System - Rvng G2X

There's nothing quite like the RVNG 4" True Single Valved Quad-Tip Exhaust for the BMW M340i and M440i. Designed from the ground up for flow and performance, it replaces the factory dual-path exhaust with a full 4" single pipe, dramatically cutting back-pressure and unlocking the true voice of the B58.

With the valves open you get an aggressive, deep note and faster spool through the unrestricted single path; close them for a refined, quieter tone for daily driving. Hand-built from high-grade stainless with precision TIG welds, the quad-tip setup gives a clean OEM-plus look while the 4" main pipe lets the engine breathe freely — stock or heavily modified. An exhaust brace is included.

Features

• True 4" single-pipe design for maximum flow and reduced back-pressure
• Valved system — switch between aggressive and refined tones
• Quad-tip setup with premium finish options
• Faster turbo spool from less restriction
• Hand-built, precision TIG-welded high-grade stainless steel
• Direct bolt-on for M340i and M440i — no cutting or welding
• Works on stock or big-turbo setups
• Exhaust brace included

Fitment

BMW M340i and M440i (B58).

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.