Heat Shield Catted Downpipe B9 A4/A5/Q5

Heat Shield Catted Downpipe – Audi B9 A4 / A5 / Q5 2.0T (2017–2020)
Enhanced Performance with Emissions-Friendly Flow

The PowerHaus Performance Heat Shield Catted Downpipe is engineered to maximize performance while maintaining street-legal functionality. Designed for B9-platform vehicles equipped with the 2.0L turbocharged EA888 Gen 3 engine, this downpipe replaces the restrictive factory unit with a high-flow, emissions-compliant solution. Integrated stainless steel heat shielding protects surrounding components and ensures optimal performance under load.

Confirmed Fitment:

• Audi A4 B9 2.0T (2017–2020)

• Audi A5 B9 2.0T (2017–2020)

• Audi Q5 B9 2.0T (2018–2020)

Fits EA888 Gen 3 2.0L Turbo engines. Not compatible with B9.5 models (2021+), hybrid powertrains, or FWD-to-AWD conversions without modification. Please select your exact make, model, and year to confirm fitment.

Product Features:

• High-Flow 400-Cell Catalytic Converter: Increases exhaust flow while helping maintain emissions compliance. Reduces the risk of check engine lights when paired with proper tuning.

• Stainless Steel Heat Shielding: Laser-cut, form-fitted thermal shielding protects engine bay components and lowers intake temps during aggressive driving.

• T304 Stainless Steel Construction: Fully mandrel-bent and TIG-welded for long-term durability, corrosion resistance, and a perfect fit.

• Improved Performance: Gains of 10–15 horsepower with supporting modifications and ECU calibration. Enhanced turbo spool, reduced backpressure, and a more responsive powerband.

• Refined Exhaust Note: Slightly deeper tone without excessive drone, ideal for daily drivers and spirited enthusiasts alike.