Audi 8V S3 Catted Downpipe With Heat Shield

Unlock smoother power delivery, improved turbo response, and enhanced reliability with this 200-Cell High-Flow Catted Downpipe featuring an integrated heat shield, designed specifically for the Audi S3 8V (2013–2020). Engineered for enthusiasts who want increased performance without going fully catless, this downpipe delivers exceptional flow while maintaining reduced emissions and a more refined exhaust tone.

Crafted from premium 304 stainless steel and TIG welded to motorsport standards, this downpipe offers superior durability and heat resistance. The 200-cell high-flow catalytic converter significantly increases exhaust efficiency compared to the restrictive factory cat, while the added thermal heat shield reduces engine bay temperatures and protects surrounding components under high-load conditions.

Perfect for tuned street cars and spirited daily driving, this downpipe combines power, precision, and practicality — all with direct bolt-on fitment.

Key Features

200-Cell High-Flow Catalytic Converter
Designed to maximise exhaust gas flow while reducing emissions and preventing check engine lights when tuned.

Integrated Thermal Heat Shield
Reduces radiant heat in the engine bay, improving component longevity and overall performance consistency.

3.5” Large Bore Inlet Tapering to OEM Connection
Ensures optimal flow from the turbo while maintaining compatibility with stock and aftermarket exhaust systems.

Premium 304 Stainless Steel Construction
Corrosion-resistant, heat-toughened, and built for long-term reliability.

TIG-Welded for Strength & Precision
Clean, strong welds designed to withstand high boost pressure and extreme exhaust temperatures.

Direct Bolt-On Fitment
Fits factory mounting points with no cutting, fabrication, or modifications required.

Performance Benefits (When Tuned)

• Gains of 15–25 HP and 25–35 Nm of torque

• Faster turbo spool and improved throttle response

• Smooth, refined exhaust note with increased volume and tone

• Lower engine bay temperatures thanks to integrated heat shielding

Vehicle Fitment

• Audi S3 8V (2013–2020) — Hatch, Sedan, and Sportback

• Compatible with non-OPF/GPF models

Please Note

This product is designed for off-road or motorsport use only in regions where modifications may affect emissions compliance. Professional installation and ECU tuning are recommended for best performance and CEL prevention.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — particularly Volkswagen GTI & R models, Audi S/RS, and other VAG platforms. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.