




WSTN Performance
WSTN BMW N54 Catless Downpipes 335i/135i (E8X/E90/E92/E93)
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
In stock. Ships in 2-4 Days
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
In stock. Ships in 2-4 Days
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
In stock. Ships in 2-4 Days
DESCRIPTION
✅ Unlock +25HP Instantly 🚗 Bolt-On Fitment 🔥 Raw Turbo Sound
Want your N54 to finally sound like a true twin-turbo beast?
The WSTN Catless Downpipes free up exhaust flow, drop backpressure, and deliver an instant gain of +25HP and +30TQ at the wheels — all while unleashing the raw, aggressive turbo sound your N54 was built for.
Crafted from high-grade stainless steel and built for bolt-on installation (RHD & LHD), these downpipes are tested to handle serious power — no cutting, no tune required.
Why Upgrade?
✅ +25HP / +30TQ at the wheels – Unleash real power gains you can feel
✅ Aggressive turbo sound – Hear the N54 breathe and spool without restriction
✅ Smooth mandrel-bent piping – Reduces turbulence and maximises exhaust velocity
✅ Track-tested stainless steel – Built for performance and durability
✅ Direct bolt-on fit – No cutting, welding, or tuning needed
Fitment & Compatibility
✔️ Fits both RHD and LHD vehicles
✔️ Compatible with the following BMW N54 models:
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335i: E90, E91, E92, E93 (2007–2010)
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335is: E92 (2011–2013)
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135i: E82, E88 (2008–2010)
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BMW 1M: E82, E88 (2011–2012)
IN THE BOX
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2 x WSTN Catless Downpipes
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2 x Gaskets
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2 x Bolts
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All required mounting hardware included
Installation
🛠️ Fits factory mounting points — direct OEM replacement
⏱️ Installation time: ~1 hour
⚙️ No tune required, but pairing with a tune can maximise gains
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.

