Valvetronic Designs Valved Axle-Back Exhaust System - 2019-2024 BMW 330i & 430i (G20/G22)
The Valvetronic Designs Valved Axle-Back brings the flexibility of their F-Chassis systems to the BMW G2X platform. TIG-welded from T304 stainless steel and built around the factory mounting points and cut locations, it installs with an OEM+ fit and finish, with 3.5 inch tips that fill the rear bumper the way the factory tips were meant to.
With the valves closed, all exhaust gases route through a quad-chambered muffler for stock-level volume, ideal for early starts and quiet commuting. Open the valves and the muffler is bypassed entirely, freeing up flow for a deeper, more engaging tone without unwanted cabin drone.
Why Choose This System
- True OEM+ fitment using factory mounting points and cut locations
- Works as a standalone upgrade or as part of a larger exhaust build
- OEM valve integration operates through your BMW's factory drive modes for instant control
Construction
- Fully mandrel-bent T304 stainless steel
- Precision TIG welds for strength and durability
- Customizable 3.5 inch outlet tips for an OEM+ look
- OEM electronic valves with rapid open and close response
Important Compatibility Information
This axle-back is built for the 330i and 430i. Looking for the same treatment on an M340i or M440i? See the Valvetronic Designs BMW G20 M340i / M440i Valved Sport Exhaust System.
What's Included
- Valved axle-back exhaust system, T304 stainless steel
- OEM valve extension harness for plug-and-play installation into your factory exhaust valve controller
Product Specifications
- Fitment: 2019-2024 BMW 330i (G20) and 430i (G22/G23)
- Material: T304 stainless steel
- Tip size: 3.5 inch outlets
| Finish | SKU | MPN |
|---|---|---|
| Carbon Fiber | V044 BMW.G20.330i.AXL.BR.RC | BMW.G20.330i.AXL.BR.RC |
| Black | V044 BMW.G20.330i.AXL.BR.BLK | BMW.G20.330i.AXL.BR.BLK |
| Chrome | V044 BMW.G20.330i.AXL.BR.CH | BMW.G20.330i.AXL.BR.CH |
| Burnt | V044 BMW.G20.330i.AXL.BR.BRT | BMW.G20.330i.AXL.BR.BRT |
| Forged Carbon Fiber | V044 BMW.G20.330i.AXL.BR.FC | BMW.G20.330i.AXL.BR.FC |
| Brushed | V044 BMW.G20.330i.AXL.BR.BRSH | BMW.G20.330i.AXL.BR.BRSH |
Frequently Asked Questions
Does the exhaust valve still follow my BMW's drive modes?
Yes. OEM valve integration operates through your factory drive modes for instant control.
Will this cause drone at highway speed?
No. With the valves closed, gases route through a quad-chambered muffler for stock-level, drone-free operation.
Can I run this on its own, without other exhaust modifications?
Yes. It works as a standalone upgrade or as part of a larger free-flow exhaust build.
Is this reversible if I want to go back to stock?
Yes. It reuses factory mounting points and cut locations, so returning to a stock-style setup is straightforward.
Where can I get help before I order?
Contact your BMP Tuning rep with any fitment questions.