01 / 03VCTR · Downpipe - Catted
VCTR Performance Audi S4/S5 B9 Catted Downpipe Kit
$1,199.99
or 4 payments of A$300.00 with Afterpay
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Estimated delivery in 1–2 weeks. Tracking is supplied as soon as your order leaves us.
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Fitment support
Tracked delivery
Australian support
Before you order
Road-registration and emissions requirements vary by vehicle, modification and jurisdiction. Confirm local requirements before installation.
Why VCTR
- Platform-specific fitment
- Help before you order
- Tracked order updates
- Australian-based support
Overview
The B9 S4/S5's factory Downpipe carries an OPF that is the primary restriction in the post-turbo exhaust path. This high-flow catted Downpipe replaces the OPF with a less restrictive catalyst — improving exhaust flow and turbo response while maintaining catalytic function for road use.
- High-flow catalyst significantly less restrictive than the factory pre-cat or OPF
- Improved exhaust flow and turbo response versus the OEM Downpipe
- Retains catalytic converter — better suited to road-registered vehicles
- Stainless Steel construction for durability
Engineering Focus
SS304 Stainless Steel with a high-flow catalyst. The OPF is replaced by a less restrictive unit — an improvement over the factory Downpipe that retains catalytic function.
Driving Experience
The OPF on the B9's EA839 V6 is a noise- and emissions-compliance part first, an exhaust component second. This kit removes that restriction while keeping a real catalyst in place, so the car stays road-legal and gains the turbo response the EA839 has been holding back the whole time.
Delivery
Availability
Status
Available for dispatch
Dispatch
Estimated dispatch: 1–2 business days
Delivery
Delivery estimate shown at checkout
Confidence
High · verified today
Dispatch timing verified against recent supplier performance. Tracked shipping. Change-of-mind eligibility is set out in our Returns Policy. Your rights under Australian Consumer Law are not limited.
In the box
What's included
- High-flow catted downpipe assembly
- Supplied gaskets and installation hardware
Technical
Specifications
- Brand
- VCTR
- Category
- Exhaust
- Vehicle
- Audi S4 B9 · Audi S5 B9
- Engine
- Ea839
- Platform
- MLB Evo
- Material
- Stainless Steel
- Availability
- In Stock
Continue Your Build
Audi S4 B9 upgrade pathway
In Stock
$1,199.99