This site uses cookies and other tracking technologies to assist with navigation and your ability to provide feedback, analyse your use of our products and services, assist with our promotional and marketing efforts, and provide content from third parties.

ECS Tuning Big Bore Cast Aluminum Turbo Inlet Pipe - B9 S4/S5 3.0T
Zoom the image with the mouse
Deko Finance Logo

We have partnered with Deko Finance to offer you an excellent range of Finance Options. Simply use the calculator under the product price!

ECS Tuning Big Bore Cast Aluminum Turbo Inlet Pipe - B9 S4/S5 3.0T

(No reviews yet) Write a Review
Calculated at Checkout
ECS Tuning
Engine Tuning

All too often OEM components sacrifice performance in an effort to appeal to a wide variety of customers. While an enthusiast typically wants better boost response and more power, all while hearing the turbocharger breathe, a non-enthusiast may give up these characteristics for a quieter ride. Give your 3.0T Audi B9 S4 or S5 the performance it deserves and engage with your car for a more enjoyable driving experience! 

In the case of the factory turbo inlet pipe, mounted between the compressor housing and air intake hose, its purpose is to channel air from the inlet hose into the turbocharger inlet, all while reducing engine bay acoustics and sacrificing quality materials in favor of cheap molded plastic material. With the ECS Big Bore Turbo Inlet Pipe, the factory inlet pipe is removed and replaced with our straight-through, high flow cast aluminum inlet. This increases available airflow and turbocharger sound by creating a larger, smoother transition between the turbo inlet hose and compressor housing inlet. To top things off, the flange and bungs are TIG welded, machined billet aluminum to ensure longevity, strength, and dimensional accuracy.  

Key features: 

  • Cast aluminum construction

  • 55mm ID at the turbo inlet to maximize air flow (compared to stock 52.2mm) with an 11% increase in area

  • 66mm ID at the intake elbow

  • Retains factory PCV return and wire loom anchors

  • Machined billet flange and bungs for a precision fit and durability 

  • Oil resistant o-ring and stainless hardware included



  • Increased bore diameter for increased flow and reduced restriction to the turbo

  • At -20 in Hg test pressure, the stock inlet has a flow rate of 327 CFM vs the ECS inlet which has a flow rate of 382 CFM, a 16.8% increase in flow rate over the stock plastic inlet!

Awesome GTI Delivery Information


For European Customers prices now displayed in cart once you enter your address will have 20% UK VAT Tax removed, however you will have to pay some form of Duties / VAT prior to delivery of your goods. If you are unsure of charges we recommend you should contact your local authorities ahead of placing your order.

Do we ship abroad ?

Yes we do, to almost anywhere in the world though remember the postage is often high when shipping anything bulky. Most bulky items we export will go by UPS so you can track the package online and could reach America within 48 hours providing its in stock !

However there are a few countries we do not ship to, some of these include: Thailand, Malaysia, Indonesia, Russia, Nigeria, Macedonia, Syria, Ukraine, Lebanon.

Why is postage on bulky items to some countries expensive compared to some other companies ?

For both yours and our safety we use well known couriers such as DPD Local and UPS for shipping, then we know exactly where it is in the world at any time and we know its going to arrive safely. Shipping small items can be cheap, but items such as bodykits are expensive to ship - we have a very small margin on the postage fees merely to cover packaging. We can now ship using standard post on some items, however using all methods you may incur import charges when you receive the goods for which we cant be responsible for.


Not everything on our website is in stock, if you need a part desperately please contact us first to confirm availability before placing your order

How do I place an order if I live within the UK ?

You can either order here in our online shop or you can phone us or email us, using the following number/address are below. Phone: 0161 776 0777 email:

How do I place an order if I live outside the UK ?

You can order online or by emailing us. email:

  • Shop By Car/Audi/S4 (B9)
  • Shop By Car/Audi/S5 (B9)

0 Reviews Hide Reviews Show Reviews

This product hasn't received any reviews yet. Be the first to review this product!
Write a Review

Related Products

Customers Also Viewed

Need help? We're available at (0044) 161 776 0777 • Email us at or Live Help