Titanium Valved Catback Exhaust System for Audi B9 S4 S5
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Take your Audi B9 S4 or S5 to the next level with the STRATEC Ultra-Light Titanium Valved Exhaust System, engineered for maximum weight reduction, performance, and sound control. Built for enthusiasts who demand the lightest possible setup without compromising durability, this system delivers a sharp, aggressive exhaust note when valves are open and refined, OEM-like behavior when closed.
Designed as a complete one-piece system from the downpipe connection to the exhaust tips, this exhaust eliminates the need to mix components from different suppliers, ensuring consistent sound quality, perfect fitment, and seamless performance.
With valves open, expect a crisp, motorsport-inspired tone with pronounced overrun crackles. With valves closed, the system remains quiet and comfortable for daily driving—without drone when paired with the factory downpipe.
Why It Works
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Ultra-Light Titanium Construction: Significant weight savings over stainless steel
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Electronic Valve Control: Instantly switch between aggressive and refined sound
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One-Piece System Design: No need to mix axle-backs or resonators
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Mandrel-Bent Titanium Tubing: Maximizes flow and throttle response
Sound & Control
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Valves Open: Loud, sharp, and performance-focused exhaust tone
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Valves Closed: Quiet, refined, and daily-drivable
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No Drone: When paired with the OEM downpipe
Construction & Details
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Material: Full titanium construction for extreme weight reduction
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Weight Savings: Significantly lighter than factory and stainless systems
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Craftsmanship: Precision TIG welding and smooth mandrel bends
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Exhaust Tips: Includes premium titanium tips for a motorsport finish
Vehicle Fitment
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2017–2024 Audi S4 (B9)
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2018–2024 Audi S5 (B9)
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.