High Flow 3 Inch Downpipe Exhaust for 1999-2006 Audi S3 & TT 1.8T - Performance Upgrade for Turbocharged Engines | Perfect for Racing & Street Tuning

FLASHARK Downpipe Exhaust for 1999-2006 Audi S3 & TT 1.8T 3 Inch High Flow

FLASHARK's performance downpipes, designed for vehicles like the Audi S3 and TT 1.8T, seamlessly replace the restrictive factory units located just after the catalytic converter. These Audi S3 downpipe upgrades improve horsepower and torque by allowing exhaust gases to exit the turbo more freely. Built with precision and high-quality materials, they enhance exhaust flow, boost engine efficiency, and deliver a more responsive driving experience.

Fitment:

• 1999–2003 Audi S3
• 1999–2006 Audi TT ( Unsuitable TT Quattro)

Specifications:

Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Downpipe Exhaust
Material: Stainless Steel
Surface: Mirror Polish
Model: DP29704

Features:
1. Improve Engine Output and Efficiency, Give you extra HPs, and increases torque
2. Large diameter and free flow tubing for unrestricted flow, Making the exhaust air flow smooth, Designed for high-performance racing
3. Made of High-Quality 16-gauge T-304 Stainless Steel with Computerized Mandrel-Bends
4. All joints are TIG welded to prevent cracking and wear
5. CNC Machine Flange for MAX Strength and Durability
6. Flanges chrome plated for corrosion resistance

What does a Downpipe do?

The on a turbocharged vehicle routes hot exhaust gases from the turbine housing into the rest of the exhaust system. A high-performance downpipe—like FLASHARK’s 3-inch high-flow unit designed for Audi S3 8L and Audi TT 1.8T (non-Quattro) models—typically features a larger diameter and may use a high-flow catalytic converter or eliminate it altogether for maximum flow.

By replacing your restrictive stock downpipe with an upgraded version, you allow the turbo to expel exhaust gases more efficiently. This reduces backpressure, increases horsepower and torque, and supports higher boost levels—making an Audi S3 downpipe upgrade (or similar TT fitment) a key performance mod for 1.8T turbo engines.