Product Description
Upgrade your Audi 8V S3 or VW MK7 Golf R with the Milltek Cast Large Bore Downpipe and Race Cat. Designed to reduce back-pressure and improve exhaust gas flow, this system supports increased horsepower and torque when paired with proper tuning.
Constructed from high-quality stainless steel with a high-flow catalyst, this downpipe is engineered for durability, performance, and direct-fit installation.
Key Features and Benefits
- Large bore cast construction for improved exhaust flow
- Improved turbo response
- 200CPSI no cell race catalyst
- High-quality stainless steel construction
- Precision fitment
- Supports Stage 2 tune
Vehicle Compatibility
- 2015–2020 Audi 8V/8V.5 S3
- 2015–2019 VW MK7/MK7.5 Golf R
Installation and Notes
- Must be fitted with a Milltek Catback Exhaust
- Stage 2 ECU tune required
- Not emissions compliant in some regions
- Professional installation recommended for best results
- Inspect gaskets and hardware during installation
- Check for leaks after installation
Frequently Asked Questions
Q: Is this street legal?
A: Race cat systems may not be emissions compliant. Check your state regulations.
Q: Will this increase power?
A: Yes. A larger-bore downpipe improves flow and supports higher power levels with proper tuning.
Q: Do I need an ECU tune?
A: Yes. A Stage 2 tune is required.
Q: Will this work with stock exhaust?
A: No. Must be fitted with a Milltek Exhaust.
Recommended Upgrades
- Milltek Catback Exhaust System
- High-flow air intake
- ECU tune
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- Direct ship and fast shipping
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