BMW G8X M2 / M3 / M4 400 Cell Catted Downpipes
Genuine Valvetronic Designs motor vehicle exhaust, supplied and supported in Australia by Vero Motorsport.
- Valve-controlled: aggressive when open, quiet and drone-free when closed
- Mandrel-bent, TIG-welded stainless or titanium construction
- Direct bolt-on and 100% reversible, return to stock any time
- Genuine dealer stock with a 12-month warranty extended to Australia
Why this system
Engineered by Valvetronic Designs, one of the world's leading valved exhaust manufacturers, and delivered to your door by Vero Motorsport. Sound on demand, serious build quality and a genuine, warranty-backed system.
Sound on demand
Open the valve for a full, aggressive motorsport tone. Close it for a refined, drone-free cruise and quiet cold starts.
Premium construction
Mandrel-bent and TIG-welded in T304 stainless or lightweight Grade 5 titanium for strength, flow and durability.
Bolt-on and reversible
Fits factory mounting points and connects to your OEM downpipes. 100% reversible, return to stock whenever you like.
Genuine and warranty backed
Authorised dealer stock with a 12-month manufacturer warranty extended to Australia and handled locally through us.
What's included
- Complete Valvetronic Designs valved exhaust system for your selected configuration
- A valve controller supplied with the system, or connection to your stock valve controller, depending on the system
- Required mounting hardware and gaskets to fit your car
- Fitment guidance and access to our expert Australian support team
Build quality and specifications
Fitment confidence
This system is matched to the model in the title and bolts straight to your factory downpipes. Not sure about your exact variant, year or drivetrain? Our team confirms fitment before you order, so you buy with confidence. Prefer a professional install? We can point you to our recommended installer network across Australia. Talk to our team.
Details and specifications
Full product details
Free up your BMW G8X M2, M3 or M4's S58 twin-turbo inline-6 with these EPA-compliant 400 cell high-flow catted downpipes, built to reduce backpressure and sharpen exhaust character while maintaining emissions compliance standards.
The G8X M2, M3 and M4 represent the next evolution of M performance, powered by the highly capable S58 twin-turbo inline-6. While the factory catalysts prioritise restriction and sound suppression, these EPA-compliant 400 cell high-flow catted downpipes reduce exhaust backpressure, enhance turbo efficiency and unlock a sharper, more aggressive exhaust character, all while maintaining emissions compliance standards. This upgrade maximises the performance potential of the S58 platform without compromising drivability.
Key features
- EPA-compliant 400 cell high-flow catalysts for increased exhaust flow while maintaining compliance standards
- Improved turbo response from reduced restriction, enhancing spool speed and mid-range power delivery
- Enhanced exhaust character with a deeper tone, more defined turbo acoustics and a sharper high-RPM presence
- Street and track ready, with noticeable gains while maintaining everyday usability
- Engineered to pair seamlessly with Valvetronic exhaust systems
Performance and engineering
- Optimised flow architecture that minimises backpressure while preserving catalyst efficiency
- Mandrel-bent tubing with smooth internal transitions for consistent exhaust velocity
- Precision TIG welding built to withstand extreme exhaust temperatures and high boost levels
- Direct OEM bolt-on installation using factory mounting locations
Sound transformation
- Stock exhaust with downpipes: a noticeable increase in depth and turbo presence with improved exhaust clarity
- Valvetronic exhaust with downpipes: maximum transformation, with stronger crackles, enhanced turbo spool acoustics and a more aggressive overall signature
Construction and durability
- Premium high-grade stainless steel construction
- High-temperature resistant 400 cell catalyst cores
- OEM-style sensor placement for proper operation
- Engineered for long-term reliability under high boost and tuning conditions
Fitment
- BMW G8X M2
- BMW G8X M3
- BMW G8X M4
Why buy from Vero Motorsport
Vero Motorsport is an authorised Valvetronic Designs dealer, with fast Australia-wide shipping and expert support before and after your purchase.
Order online today and add the G8X M2 / M3 / M4 catted downpipes to your cart.
📩 Questions or ordering assistance? info@veromotorsport.com
Fitment and installation
Shipping, warranty and returns
Frequently asked questions
Why buy from Vero Motorsport instead of Valvetronic Designs directly?
Are there any extra costs at checkout or on delivery?
Do you price match?
Is the 12-month warranty valid in Australia?
What is your returns policy?
Is this a genuine Valvetronic Designs product?
Will it fit my car?
How loud is it, and will it drone?
Is a valve-controlled exhaust legal in Australia?
How fast is shipping?
Do you offer support if I have questions?
Do you offer fitment support?
Reviews
About Valvetronic Designs
Valvetronic Designs is a globally recognised manufacturer of valve-controlled performance exhaust systems, engineered for the world's most desirable performance and luxury marques. Their systems are built around a simple idea: give the driver full control of their sound, from an aggressive motorsport roar to a refined, drone-free cruise, all at the push of a button.
Every system is crafted from premium T304 stainless steel or lightweight Grade 5 titanium, mandrel-bent and TIG-welded for flow, strength and a flawless finish. Vero Motorsport is the authorised Australian home for the brand, bringing the full range to local enthusiasts with all-inclusive pricing, a local warranty and expert support. Explore the full Valvetronic Designs range.
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The BMW G8X M2 / M3 / M4 400 Cell Catted Downpipes is a genuine Valvetronic Designs motor vehicle exhaust, supplied and supported in Australia by Vero Motorsport. As an authorised Valvetronic Designs dealer and Australia's biggest stockist, we bring you the full valved exhaust range with all-inclusive pricing, a local 12-month warranty and fast Australia-wide shipping to Sydney, Melbourne, Brisbane, Perth, Adelaide and beyond. This is a switchable valvetronic exhaust, so you get an aggressive motorsport tone when the valve is open and a quiet, drone-free cruise when it is closed.
Why buy the BMW G8X M2 / M3 / M4 400 Cell Catted Downpipes from Vero Motorsport
Buying your BMW G8X M2 / M3 / M4 400 Cell Catted Downpipes from Vero Motorsport means genuine Valvetronic Designs stock, not a copy, with duties, GST and import fees already covered so the price you see is the price you pay. You get expert fitment support before and after your purchase, 24/7 Australian-based help and easy, hassle-free returns. Browse the complete Valvetronic Designs exhaust range to compare systems for your car.
Genuine Valvetronic Designs quality and build
Every Valvetronic Designs system is mandrel-bent and TIG-welded in premium T304 stainless steel or lightweight Grade 5 titanium, engineered as a direct bolt-on that connects to your factory downpipes and is 100% reversible. If you are searching for a BMW G8X M2 / M3 / M4 400 Cell Catted Downpipes or a wider Valvetronic Designs valved exhaust in Australia, Vero Motorsport is your authorised home for the brand. Shop all Valvetronic Designs exhausts or contact our team to confirm fitment for your build.
