BMW F8x M3 / M4 Equal Length Valved Sport Exhaust System
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.
Hear it: valve open vs valve closed
A Valvetronic Designs system puts the sound in your control. Two modes, one exhaust. Press play below.
Unrestricted flow for an aggressive, race-inspired tone with a powerful overrun and a high-RPM scream at full noise.
Refined, near stock volume for a comfortable daily commute, quiet early starts and drone-free highway cruising.
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
Cure the rasp and unlock the rich, balanced sound of your BMW F8X M3 or M4's S55 with the Valvetronic Designs equal-length valved cat-back, an equal-length 2.75" mid-section with H-pipe and a 3.5" axle-back in T304 stainless steel or Grade 5 titanium.
The S55 in the F8X M3 and M4 is a performance masterpiece, but its stock exhaust note has long been criticised for excessive rasp and a lack of tonal depth. This equal-length valved cat-back eliminates the factory harshness and unlocks the rich, balanced sound the S55 was always capable of producing.
The system features a 2.75-inch equal-length mid-section with an H-pipe feeding into a 3.5-inch axle-back. The equal-length design smooths the exhaust tone across the rev range while preserving the aggressive character owners love. With the valves open, gases exit freely from the passenger-side tips for maximum volume and performance. With the valves closed, flow is routed through the quad-chamber muffler to the driver-side tips for a quieter, more refined note, ideal for daily driving. No cutting or welding is required; this is a true direct bolt-on system designed to mount to factory points.
Why it works
- Equal-length mid-section: balances pulses for a cleaner, smoother tone without losing aggression
- H-pipe design: improves scavenging for a fuller, more refined sound
- Dual-mode operation: raw and loud (open) or subdued and civilised (closed)
Sound and control
- Valves open: aggressive, free-breathing tone with reduced rasp and improved high-rpm clarity
- Valves closed: stock-like sound levels for stealthy driving
- Electronic valve control: includes a standalone controller; OEM integration available
Construction and options
- Materials: T304 stainless steel or Grade 5 titanium
- Weight savings: –21.7 lb (stainless) / –49.2 lb (titanium) vs OEM
- Craftsmanship: precision TIG welds and fully mandrel-bent tubing for maximum flow
- Tips: multiple premium finish options to complement your M3 or M4
Fitment
- 2015–2018 BMW M3 (F80)
- 2015–2020 BMW M4 Coupe (F82)
- 2015–2020 BMW M4 Convertible (F83)
Installation
- Direct bolt-on; no cutting or welding required
- 100% reversible, return to stock at any time
- Note for S55 owners: on free-flow/race downpipes, "2k rpm rasp" may be present during low-rpm shifts. For the most refined tone, we recommend high-flow (200 cell) catalytic converters
What's included
- 2.75" equal-length H-pipe mid-section
- 3.5" axle-back with quad-chamber muffler
- Electronic valve system with controller (OEM integration optional)
- All necessary clamps and hardware
Specifications
- Mid-section diameter: 2.75" equal-length with H-pipe
- Axle-back diameter: 3.5"
- Material: T304 stainless steel or Grade 5 titanium
- Valves: electronic, rapid open/close
- Weight savings: –21.7 lb (stainless) / –49.2 lb (titanium) vs OEM
- Design: quad-chamber muffler for refined closed-valve tone
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 F8X M3 / M4 valved cat-back to your cart.
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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BMW G87 M2 Valved Sport Exhaust SystemFrom $2,969.99BMW F8x M3 / M4 Equal Length Valved Sport Exhaust System in Australia
The BMW F8x M3 / M4 Equal Length Valved Sport Exhaust System 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 F8x M3 / M4 Equal Length Valved Sport Exhaust System from Vero Motorsport
Buying your BMW F8x M3 / M4 Equal Length Valved Sport Exhaust System 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 F8x M3 / M4 Equal Length Valved Sport Exhaust System 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.
