Let your Audi TTRS Mk3's five-cylinder soundtrack off the leash with the Valvetronic Designs 3-inch T304 stainless valved cat-back, with OEM-style electronic valve control.
The five-cylinder soundtrack is iconic, but the factory cat-back keeps it on too short a leash. This valved cat-back for the Mk3 TTRS increases system diameter to 3 inches for significantly improved flow and a sharper, more characterful note without sacrificing daily comfort.
At the heart of the design is a rear Y-section: straight-through when the valves are open for maximum presence, and routed through a quad-chamber centre muffler when closed for quiet, refined cruising.
Key features
- 3" free-flow architecture that reduces back pressure and unlocks response through the rev range
- Dual-path rear Y-section: straight-through (open) or muffled (closed) for two distinct personalities
- Tuned as a whole, designed as a cohesive cat-back for consistent tone and perfect fit
Sound and control
- Valves open: uninterrupted flow to the tips for crisp, aggressive 5-cylinder character
- Valves closed: gas passes through the quad-chamber centre muffler for significantly reduced, highway-friendly volume
- OEM integration: uses OEM-style electronically actuated valves, compatible with OEM Audi valve control
Specifications
- Tubing diameter: 3" from front to rear
- Material: T304 stainless steel throughout
- Valves: OEM-style electronic actuation (compatible with OEM control)
- Weight savings: 14.8 lb lighter than the factory exhaust
- Craftsmanship: precision TIG welds and fully mandrel-bent tubing
- Design: dual-path rear Y-section with quad-chamber muffler (valves closed)
- Finish and tips: premium tips engineered to complement the TTRS rear bumper
What's included
- 3" T304 stainless steel valved cat-back system
- Quad-chamber centre muffler
- OEM-style electronic valves
- All required clamps and hardware
Installation
- Direct bolt-on cat-back with no permanent modifications required
- 100% reversible, return to stock at any time
Fitment
- 2017–2020 Audi TTRS (Mk3 / 8S)
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 TTRS Mk3 valved cat-back to your cart.
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Not sure if a part fits your vehicle? Contact us with your make, model, and year before ordering. We will confirm compatibility so you order the right part the first time.
Every product is covered by a 12-month manufacturer-backed warranty from the date of purchase.
Vero Motorsport works with a national network of authorised installers. Contact us with your location and fitment requirements for a recommended workshop in your area.
