Titanium Valved Catback Exhaust System for Audi B8 B8.5 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
Unleash the full character of your Audi B8/B8.5 S4 or S5 with the STRATEC Ultra-Light Titanium Valved Exhaust System, engineered for enthusiasts who want maximum weight reduction, sharper response, and adjustable sound control. Built entirely from titanium, this system delivers a crisp, high-energy exhaust tone when valves are open and refined, OEM-like behavior when closed.
Designed as a complete one-piece exhaust system, it eliminates the need to mix axle-backs, resonators, or mid-pipes from different suppliers—ensuring consistent sound quality, proper fitment, and seamless performance.
With valves open, expect an aggressive, motorsport-inspired tone with strong midrange presence and exciting overrun character. With valves closed, the exhaust remains quiet and comfortable for daily driving, with minimal drone when paired with the factory downpipe.
Why It Works
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Ultra-Light Titanium Construction: Significant weight savings over stainless and factory systems
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Electronic Valve Control: Instantly switch between aggressive and refined sound
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One-Piece System Design: No component mixing for perfect fit and sound balance
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Mandrel-Bent Titanium Tubing: Maximizes exhaust 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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Driver-Controlled Valves: On-demand sound adjustment
Construction & Details
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Material: Full titanium construction for extreme weight reduction
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Weight Savings: Significantly lighter than OEM and stainless systems
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Craftsmanship: Precision TIG welding and smooth mandrel bends
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Exhaust Tips: Premium titanium tips for a clean motorsport finish
Vehicle Fitment
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2010–2016 Audi S4 (B8 / B8.5)
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2010–2016 Audi S5 (B8 / B8.5)
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.