01 / 03VCTR · Downpipe - Catless
VCTR Performance Audi S4/S5 B9 Catless Downpipe Kit
$1,199.99
or 4 payments of A$300.00 with Afterpay
Ready for tracked dispatch
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 EA839 3.0T factory Downpipe carries an OPF filter that is the primary restriction in the post-turbo exhaust path. Removing it with this catless Downpipe opens the exhaust circuit — improving turbo spool, exhaust flow and providing the foundation for meaningful power gains on tuned EA839 applications.
- Removes the primary restriction in the factory post-turbo exhaust path
- Improved turbo spool — the turbo recovers and builds pressure faster
- More defined exhaust tone under load
- Stainless Steel construction for longevity
Engineering Focus
Fabricated from SS304 Stainless Steel with OPF delete section. Matched to the OEM Downpipe flanges for direct replacement. No fabrication required.
Driving Experience
A catless Downpipe is the clearest sign a build has moved past stock thinking — every gram of OPF restriction gone from the EA839's V6 at once. It's a road-and-track piece for builds that have already committed to a tune, not a daily-comfort one.
Product Details
Why Upgrade?
- Removes the primary restriction in the factory post-turbo exhaust path
- Improved turbo spool — the turbo recovers and builds pressure faster
- More defined exhaust tone under load
- Stainless steel construction for longevity
- Provides the foundation for meaningful power gains on a tuned map
Engineering Focus
Fabricated from SS304 stainless steel with OPF delete section. Matched to the OEM downpipe flanges for direct replacement. No fabrication required.
Built for the Drive, Not Just the Dyno
A catless downpipe is the clearest sign a build has moved past stock thinking — every gram of OPF restriction gone from the EA839's V6 at once. It's a road-and-track piece for builds that have already committed to a tune, not a daily-comfort one.
Fitment
Compatible with:
- Audi S4 B9 3.0T EA839 (pre-2019 — no OPF)
- Audi S5 B9 3.0T EA839 (pre-2019 — no OPF)
Catless unit — for off-road and motorsport use. Tuning is strongly recommended post-installation.
What's Included
- Catless downpipe assembly
- Supplied gaskets and installation hardware
Specifications
- Material: SS304 Stainless Steel
- Catalyst: None (catless)
- Engine: EA839 3.0T (pre-OPF)
- Fitment: OEM flange replacement
Shipping & Fit
- Confirmed fitment by chassis and engine code before you buy, not after
- Worldwide shipping, cost calculated at checkout for your destination
- Australian Consumer Law returns on all unused, unfitted parts
- Questions about your specific build? Message us — real people, real platform knowledge
Delivery & Support
Your order is carefully inspected before dispatch and backed by VCTR Performance support. For product availability, shipping estimates or fitment assistance, contact our team.
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
- Catless 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