wstnperformance

Handbuilt - Made to order

Exhaust SystemsBuiltRight.

Every downpipe and exhaust is built to your specific vehicles engine code. T304 stainless or titanium, mandrel bent, TIG welded and quality checked before shipping.

139+

Verified builds

T304

Stainless Steel

Titanium

Alloy Construction

Hand Built to order T304 stainless steel Titanium Alloy TIG welded Worldwide shipping Australian Support Hand Built to order T304 stainless steel Titanium Alloy TIG welded Worldwide shipping Australian Support

Fitment Guarentee

12 Month Warranty

Australian support

International shipping

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Choose Your Make

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BMW

Most popular

BMW

Porsche

Porsche

Mercedes

Mercedes

Audi

Audi

McLaren

McLaren

Lamborghini

Lamborghini

Built different.

Why choose WSTN

Built different. For a reason.

Every build starts with your vehicles engine code. Every part chosen for performance and sound. Every order hand built and tracked from dispatch to your door.

01

Exact engine-code fitment

Every product is confirmed to your specific engine code and chassis before it goes into production. No guessing, no workarounds.

02

T304 stainless / Titanium alloy

Every build uses T304 stainless or Titanium alloy - the same materials specified by the top European exhaust brands.

03

12 Months warranty

Every exhaust and downpipe is backed by a 12-month warranty. If something isn't right, we make it right.

04

hand build to order

Nothing sits in a warehouse waiting. Your exhaust is built the moment you order it. Ensuring up to date fitment data.

From real

Builds and drivers

4.9

Avg rating

See all products
Liam R.

“Put this on my M2 and honestly couldn’t be happier. Fitment was good, welds looked tidy and it sounds unreal compared to stock. Valves work well too, so it’s not obnoxious all the time. Open it up and the car sounds heaps better, much deeper and more aggressive. Makes the whole car feel way more alive. Definitely one of the better mods I’ve done.”

LR

Liam R.

BMW M2 Competition / M3 / M4 F8X - Valved Catback Exhaust

Alan J.

“This is the second exhaust I’ve bought from them now and both times it’s been spot on. Quality is really good, service was easy to deal with and the valved system works exactly how it should. No issues at all. For the money, it’s hard to fault. It gives you the same look and sound as the bigger brands without the massive price tag. Very happy with it.”

AJ

Alan J.

BMW M240i B58 - Valved Cat Back

Brent W.

“Overall I’m really happy with the exhaust. There was a small fitment issue with one of the brackets, but thats probably my car, nothing major and it still went on fine. Weld quality was very good and once fitted it made a noticeable difference straight away. It’s definitely louder than stock and has a much nicer tone without sounding cheap. There is a bit of drone down low in the rev range, but that’s pretty normal on these when you go for a more aggressive exhaust setup.”

BW

Brent W.

Porsche 718 Cayman GT4 - Valved Exhaust

Josh E.

“Installed this on my 2019 M550i and couldn’t be happier with it. With the valves open it sounds deep and properly aggressive, exactly how it should. Close them and it settles right down, which is perfect for daily driving or longer trips. Fitment was spot on too, everything lined up properly and went in without needing to mess around with anything. Really happy with how it turned out.”

JE

Josh E.

BMW M550i N63 - Valved Cat Back

Alex J.

“Very nice 3-inch unit. Welds look top notch and the heat shielding is a nice touch as well. Packaging was extremely secure, so everything arrived in perfect condition. Haven’t installed it yet, but first impressions are very good and the quality looks spot on. Can’t wait to get it on the car.”

AJ

Alex J.

VW Golf R MK7/7.5 High Flow Downpipe

Ethan W.

“Put these on my RS5 and they’ve been great. Quality looked good straight out of the box, nice clean welds and everything felt well made. Once installed, the car had a much better note and felt more alive without being over the top. You can tell they’ve been made properly. Happy with how it all turned out.”

EW

Ethan W.

Audi RS5 B9 2.9T - Catless Downpipes

Gavin B.

“Quality is unreal. From the start of the order right through to the end, everything was handled properly and communication was fast the whole way through. Service was honestly 10/10. The product itself is on par with other expensive brands and the packaging was just as impressive. Everything was packed carefully and protected really well. Couldn’t fault the experience and I’d definitely recommend them to anyone thinking about buying.”

GB

Gavin B.

Mercedes E63 AMG - Valved Titanium Exhaust

Marcus B.

“Put this on my X5M and the difference was immediate. Sounds tough with the valves open, but still settles down when you want to keep it quiet. That was the main thing I was after and it does both really well. The titanium also looks awesome in person. Overall just really happy with it and glad I went with this setup. Ill be getting one for my M2 soon!”

MB

Marcus B.

BMW X5M / X6M F95 F96 - Titanium Valved Catback Exhaust

Close-up view of a WSTN Performance carbon fiber front grille designed for a BMW G87 M2, showcasing its intricate weave pattern and glossy finish.

Performance exhausts

Built by hand. Shipped worldwide.

WSTN Performance Exhausts

How every order gets built

Crafted
for your
exact build.

Every exhaust and downpipe is built to your vehicle and engine code.

Flanges are CNC machined to match your OEM mounting points. Pipe diameter, bend angles, and hanger positions are set from your chassis spec before anything is cut. No guesswork, no transfers from a similar build.

01

Order placed

Your build is locked in and production begins against your specific vehicles engine code and chassis.

02

Mandrel bent, TIG welded

T304 stainless or Titanium alloy formed to spec. Every join TIG welded by hand for clean, consistent strength.

03

Quality checked

Every unit is personally inspected against fitment specs before it it is shipped.

04

Shipped and tracked

Dispatched via DHL, FedEx, UPS with full tracking. You'll know exactly where your order is.

What stays consistent

T304

Stainless steel

Heat-resistant, corrosion-proof, and built for longevity.

TITANIUM

ALLOY

Half the weight of steel. For when performance and weight saving is key.

TIG

Weld process

Every joint fused by hand. Clean, precise beads that hold under sustained heat and pressure.

CNC

FLANGES

Machined to tolerance. Direct bolt on and perfect seals.

Built to order

Every exhaust is built to your engine code - not pulled from a shelf. When you order, production starts by hand. Lead times are listed on every product page.