RVNG X3M/X4M S58 3.5” Midpipe

⚠️ (THIS PRODUCT IS FOR OFFROAD & RACE USE ONLY)
Not 50-state compliant — may not be legal for street use depending on your state's emissions laws. See our Off-Road Use Disclaimer for full details.

RVNG 3.5” X3M/X4M Single Midpipe

The RVNG 3.5” Single Midpipe is engineered to improve the exhaust tone and flow characteristics of the BMW F97 X3M and F98 X4M.

The factory S58 exhaust system keeps the two exhaust banks separated through much of the midsection, contributing to the raspy and uneven exhaust note commonly associated with the platform. Our system merges both banks into a large 3.5” single section, allowing the exhaust pulses to interact earlier and more evenly.

This single-pipe configuration helps reduce high-frequency rasp while producing a deeper, smoother and more defined exhaust tone. The increased tubing diameter also provides a less restrictive flow path than the factory midsection, making it suitable for both stock and higher-output vehicles.

Smooth transitions throughout the system help minimize turbulence and unnecessary changes in cross-sectional area. The result is improved exhaust flow, a more balanced sound and a noticeably more aggressive tone throughout the RPM range.

Designed as a direct fit upgrade, the RVNG 3.5 inch Single Midpipe connects seamlessly to the factory downpipes and rear exhaust section without requiring permanent modifications. At Rvng RaceWorks, this upgrade is engineered for enthusiasts seeking car performance upgrades, delivering improved exhaust flow, enhanced power output, and a deeper refined sound often expected from the best exhaust system setups. For a complete performance setup, pair it with our RVNG X3M X4M S58 Race Downpipes to maximize results and achieve optimal exhaust efficiency. Follow us on Instagram to explore our products, real car builds, and see how our performance upgrades enhance driving experience.

Features

• Large 3.5” single-pipe configuration
• Merges both S58 exhaust banks into one central section
• Helps reduce high-frequency rasp and exhaust harshness
• Produces a deeper and more uniform exhaust tone
• Increased flow capacity compared to the factory midsection
• Smooth transitions designed to reduce turbulence
• Compatible with factory or aftermarket downpipes
• Retains compatibility with the factory rear exhaust system
• Direct-fit installation
• Designed for the BMW F97 X3M and F98 X4M

The RVNG 3.5” Single Midpipe delivers the deeper tone, improved flow and aggressive character the S58-powered X3M and X4M should have had from the factory.

Orders are processed same or next business day. Shipping times vary depending on the product, shipping service, and whether freight shipping is required. While we ensure all inventory levels are current and accurate, they can change due to logistics and inventory feeds. Standard shipping typically takes 3-7 business days, but some items may require additional time depending on their origin. Feel free to call us anytime for the latest status of your order.