WSTN BMW N54 Catless Downpipes 335i/135i (E8X/E90/E92/E93)

✅ 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:

• 335i: E90, E91, E92, E93 (2007–2010)

• 335is: E92 (2011–2013)

• 135i: E82, E88 (2008–2010)

• BMW 1M: E82, E88 (2011–2012)

IN THE BOX

• 2 x WSTN Catless Downpipes

• 2 x Gaskets

• 2 x Bolts

• 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

Enjoy the convenience of worldwide shipping on all products.

If upon receiving your product you wish to return it, we offer a 30-day returns policy.

For our in-depth returns information please follow the link below.

"WSTN Performance Shipping And Returns" 

SHIPPING INFORMATION

- We deliver Worldwide

- Most of our products are sent via express methods worldwide (FeDex, DHL, Express Post etc.)

- Full tracking free with every order.

Read more here.

Please note that WSTN Performance recommends installation by trained professionals

We highly recommend having all our products installed by a trained professional who possesses the necessary expertise and utilises the correct tools.

By entrusting the installation to an experienced professional, you can ensure optimal performance and minimise the risk of any potential damage.

WSTN Performance is not liable for any damages caused when installing our products or for potential damages

Your satisfaction and the safety of your vehicle are our top priorities.