WSTN Performance
WSTN BMW S55 M3/M4/M2 Competition High Flow Catted Downpipes (F87/F80/F82/F83)
► Free Australian Delivery Over AU$99
► Free International Delivery Over AU$200
► Only The Highest Quality Products
Have a question about this product? Contact Us
Hand built to order. Ships in 1-2 Weeks
Choose options
► Free Australian Delivery Over AU$99
► Free International Delivery Over AU$200
► Only The Highest Quality Products
Have a question about this product? Contact Us
Hand built to order. Ships in 1-2 Weeks
► Free Australian Delivery Over AU$99
► Free International Delivery Over AU$200
► Only The Highest Quality Products
Have a question about this product? Contact Us
Hand built to order. Ships in 1-2 Weeks
DESCRIPTION
Want your car to sound as good as it looks?
The WSTN Performance S55 Catted Downpipes upgrade your restrictive factory units with a high-flow, premium-grade system designed for drivers who want performance gains without going fully catless. Engineered from T304 stainless steel and built to OEM-level precision, these downpipes deliver faster turbo response, a cleaner, deeper tone, and improved overall efficiency—while maintaining excellent drivability and reduced smell compared to catless options.
Wrapped in integrated thermal heat shielding, they also significantly reduce engine bay temperatures and help maintain consistent performance under hard driving.
Perfect for those wanting performance with a more refined balance.
Why Upgrade?
✅ High-flow catalytic converters reduces backpressure while keeping emissions and smell under control
✅ T304 stainless steel construction for maximum heat resistance and long-term durability
✅ OEM-style heat-shield wrap reduces radiant heat and improves engine bay temps
✅ Mandrel-bent piping ensures smooth, unrestricted exhaust flow
✅ High-quality catalytic core designed for improved flow and reliability
✅ CNC-machined flanges + reinforced welds for OEM-level sealing and perfect alignment
✅ Direct bolt-on installation—no cutting, no welding
✅ Manufactured in the same facilities as premium global brands
✅ Backed by a 1-Year Warranty for complete confidence
Fitment & Compatibility
✔️ BMW M2 Competition (F87, S55) – 2018–2021
✔️ BMW M3 (F80, S55) – 2014–2018
✔️ BMW M4 Coupe (F82, S55) – 2014–2020
✔️ BMW M4 Convertible (F83, S55) – 2014–2020
In the Box
1 × WSTN Performance Catted Downpipe Set (T304 Stainless Steel)
1 x Full Fitting Kit (gaskets and bolts if permitted)
Installation
🛠 Fitment: Direct OEM-style bolt-on
⏱ Install Time: ~1.5–2 hours
🔧 Professional installation recommended for correct torque, sealing, and alignment
Why WSTN Performance?
✅ Genuine T304 stainless steel—no mild-steel or coated substitutes
✅ Precision-engineered specifically for the S55 platform
✅ Build quality equal to leading global performance brands—without the inflated price
✅ 1-Year Warranty on materials and workmanship
Bring Your Car to Life
Refined when you want it.
Brutal when you need it.
Upgrade to WSTN Performance Catted Downpipes for a perfect balance of tone, flow, and daily usability—no compromise, no doubt.
FAQ
Yes, We Deliver Worldwide with DHL, FeDex, UPS and More
Detailed fitment data is included in the "Fitment" or "Compatibility" section of every product page.
If you need to confirm a specific fitment before we start your build, please message our team through live chat or at contact@wstnperformance.com or our live chat
To ensure you can shop with total confidence, the majority of our performance parts, including our premium exhausts and carbon fibre range are backed by at least a 12-month warranty.
We specify the exact coverage on every product page so you’re always informed. For the finer details, feel free to explore our full [Warranty Policy].
If you’d like to confirm coverage for a specific build, our experts are ready to help via Chat or at contact@wstnperformance.com
We want to get your parts to you as quickly as possible.
To ensure total transparency, specific delivery estimates are clearly displayed on each product page and at checkout.
- In-Stock Items: Typically arrive in 1–3 business days (Express) or 3–7 days (Standard) within Australia.
- Made-to-Order: To ensure the highest quality, some of our specialised components are handcrafted to order and generally ship within 1–2 weeks.
- International: We ship worldwide via Express (2–5 days) and Standard (3–10 days).
Need a precise lead time? If you’re planning a build and need to confirm availability, our team is available via Live Chat or at contact@wstnperformance.com. or contact us
Most of our products are often treated as standard hardware upgrades.
However, since manufacturer warranties vary by brand and location, we are unable to provide a universal confirmation on coverage.
To be 100% safe, we recommend checking with your dealership prior to purchase.
Our return policy lasts for 14 days. If more than 14 days have passed since your product was delivered, we regret to inform you that we can't provide a refund or exchange.
Yes, we certainly can. Beyond our listed range, we have an extensive global network that allows us to source a vast array of OEM, Aftermarket, and Genuine parts from around the world. Whether you are looking for a rare factory component or a specific performance upgrade, we are here to help.
To help us assist you as quickly as possible, please make sure to include your vehicle details (Make, Model, Year, and Series/VIN) along with the part you are chasing.
Currently, WSTN Performance operates as a specialised parts supplier, however, we are actively expanding our service offerings.
We are currently working on establishing a network of certified partner workshops to provide professional installation, with future plans for our own dedicated facility.
Are you a workshop owner?
We are always looking to partner with high-quality workshops interested in installing or stocking our range. If you would like to join our authorised network, please reach out to us via Live Chat or email at
contact@wstnperformance.com to discuss a partnership.
