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The five-cylinder soundtrack is iconic—the factory cat-back just keeps it on too short a leash. The Valvetronic Designs 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 our rear Y-section: straight-through when valves are open for maximum presence, and routed through a quad-chamber center muffler when closed for quiet, refined cruising. The dream exhaust for Audi’s modern 5-cylinder is here.
3" Free-Flow Architecture: 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.
System Tuning as a Whole: Designed as a cohesive cat-back for consistent tone and perfect fit.
Valves Open: Uninterrupted flow to the tips—crisp, aggressive 5-cylinder character.
Valves Closed: Gas passes through the quad-chamber center muffler—significantly reduced volume, highway-friendly.
OEM Integration: Uses OEM-style electronically actuated valves; compatible with OEM Audi valve control.
Material: T304 stainless steel throughout.
Craftsmanship: Precision TIG welds and fully mandrel-bent tubing.
Weight Savings: 14.8 lb lighter than the factory exhaust.
Finish & Tips: Premium tips engineered to complement the TTRS rear bumper.
2017–2020 Audi TTRS (Mk3 / 8S)
Direct bolt-on cat-back; no permanent modifications required.
100% reversible—return to stock at any time.
3" T304 stainless steel valved cat-back system
Quad-chamber center muffler
OEM-style electronic valves
All required clamps and hardware
Tubing Diameter: 3" from front to rear
Material: T304 stainless steel
Valves: OEM-style electronic actuation (compatible with OEM control)
Weight Savings: 14.8 lb vs. OEM
Design: Dual-path rear Y-section; quad-chamber muffler (valves closed)
Eurosport Performance does not have live product tracking. In stock items typically ship within 24h. All items with the "Ships in 5-7 days" mention are not in stock and must be ordered from our suppliers. The import process typically takes 5-7 days.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
