Valvetronic Designs Valved Sport Exhaust System for 8S Audi TTRS [AUD.MK3.VSES.BR]

Valvetronic Designs Valved Sport Exhaust System for 8S Audi TTRS [AUD.MK3.VSES.BR]

Valvetronic Designs recognizes the five-cylinder’s iconic voice and notes the factory cat-back keeps it on too short a leash. The Valvetronic Designs Valved Cat-Back for the Mk3 TTRS ups system diameter to 3 inches for markedly better flow and a sharper, more characterful note without sacrificing daily comfort. A rear Y-section delivers two personalities: straight-through when the valves are open for maximum presence, or routed through a quad-chamber center muffler when closed for quiet, refined cruising. The ideal exhaust for Audi’s modern 5-cylinder has arrived.

Sound & Control

• With the valves open, Valvetronic Designs routes exhaust in an uninterrupted path to the tips for a crisp, aggressive five-cylinder character. With the valves closed, gases pass through the quad-chamber center muffler for significantly reduced volume and highway-friendly manners. OEM-style electronically actuated valves ensure full compatibility with Audi’s factory valve control.

Why It Works

• Valvetronic Designs’ 3-inch free-flow architecture reduces back pressure and unlocks response across the rev range, while a valved dual-path rear Y-section delivers two distinct personalities—straight-through when open or routed through the muffler when closed. Tuned as a cohesive cat-back, the system ensures a consistent tone and a precise, factory-level fit.

Features

• 3″ free-flow cat-back architecture to reduce back pressure and sharpen response
• Valved dual-path rear Y-section: straight-through (open) or quad-chamber muffled (closed)
• Crisp, aggressive five-cylinder character open; quiet, highway-friendly refinement closed
• OEM-style electronically actuated valves compatible with Audi factory controls
• Tuned as a cohesive system for consistent tone and precise, factory-level fit
• T304 stainless steel construction with precision TIG welds and fully mandrel-bent tubing
• 14.8lb weight reduction vs. factory exhaust
• Premium tips designed to complement the Mk3 TTRS rear bumper

Specifications

• Tubing Diameter: 3″ from front to rear
• Material: T304 stainless steel
• Valves: OEM-style electronic actuation (compatible with OEM control)
• Weight Savings: 14.8lb vs. OEM
• Design: Dual-path rear Y-section; quad-chamber muffler (valves closed)

What’s Included

• 3″ T304 stainless steel valved cat-back system
• Quad-chamber center muffler
• OEM-style electronic valves
• All required clamps and hardware

Applications

• Audi TTRS: 8S (2017-2020) [2.5L I5 TT]

About Valvetronic Designs

Valvetronic Designs, based in Boyertown, Pennsylvania, is a leader in high-performance exhaust systems, dedicated to innovation, precision, and enhancing the driving experience. Specializing in bespoke solutions for luxury and performance vehicles such as Lamborghini, Ferrari, and Porsche, Valvetronic combines advanced engineering with meticulous craftsmanship to deliver unparalleled sound and performance. With proprietary technologies like free-flow configurations and double X-pipe designs, their exhaust systems set new benchmarks for exotic and race-inspired tones. Every product is designed and manufactured in-house, ensuring exceptional quality and tailored customization, from fitment precision to sound profiles. Driven by a passion for excellence, Valvetronic Designs strives to create the ultimate auditory and performance experiences for automotive enthusiasts worldwide.