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AWE Tuning Audi B8 A5 2.0T Touring Edition Single Outlet Exhaust - Polished Silver TipsAWE A4 Research and Development has yielded an exhaust that is remarkably civil while idling part throttle cruising, but unleashed at full throttle it produces what some have called a "war cry wail." Sophisticated, refined, and powerful, all in one package. Making good, better The stock exhaust system on a B8. 5 A4 is full of crimped tubing obstructs exhaust flow and robs horsepower. The AWE B8. 5 A4 Touring Edition Exhaust and Downpipe are designed
AWE A4 Research and Development has yielded an exhaust that is remarkably civil while idling / part throttle cruising, but unleashed at full throttle it produces what some have called a "war-cry wail." Sophisticated, refined, and powerful, all in one package. Making good, better The stock exhaust system on a B8.5 A4 is full of crimped tubing obstructs exhaust flow and robs horsepower. The AWE B8.5 A4 Touring Edition Exhaust and Downpipe are designed using CAD modeling software to produce smooth gradual bends and to eliminate any interruption to the flow of exhaust gasses. Our improvements to the exhaust path result in gains of 8-9 horsepower and 6-7 lb ft of torque at the crank. AWE A4 Touring Edition Exhaust - Quad Outlet (Four total tips, two on each side) The quad-tip version of our A4 Touring Edition Exhaust features four 90mm (3.50 inch) slash-cut tips, located on each side of the car. The tips sport engraved AWE logos and are double-walled to ensure a mirror polish, even under hard usage. Each tip is individually adjustable, so stagger and depth into bumper can be set according to personal taste. This system will not work with the factory valance and requires a quad-tip conversion. The purchase of an Conversion Kit in order to allow quad tip fitment. Additional sound level tuning For the enthusiast interested in a more aggressive sound, we offer our Resonated Performance Downpipe. The factory unit contains a fairly large straight through resonator. By replacing this large piece with a more compact but still straight through resonator, we were able to increase sound volume while adding a slightly deeper tone. Testing showed no power increase in adding the downpipe. It will mate to our exhaust system or any other exhaust designed to work with the stock downpipe. Please note: This product cannot be returned or exchanged based upon sound satisfaction.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2014 | Audi | A5 | Cabriolet |
| 2010-2014 | Audi | A5 Quattro | Base |
| 2010-2014 | Audi | A5 Quattro | Cabriolet |
| 2015-2016 | Audi | A5 Quattro | Premium |
| 2015-2016 | Audi | A5 Quattro | Premium Plus |
| 2015 | Audi | A5 Quattro | Prestige |
| 2017 | Audi | A5 Quattro | Sport |
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4.2 ★★★★★
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Product Reviews
★★★★★ 4
Just learning it
Format: Paperback
Nice learning book just have to finish it
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Reviewed in the United States on December 10, 2025
★★★★★ 5
Very useful book
Format: Paperback
I use it for the machine learning class I teach.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Cover many areas in detail and recommendations for more to read for what's outside
Format: Paperback
Good book!
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Reviewed in the United States on May 4, 2026
★★★★★ 5
One of the best machine learning books...
Format: Paperback, Format: Paperback
Machine Learning can often be intimidating whether you are starting out or already a practitioner. It is easy to get stuck on one concept, walk away frustrated, or just copy that code you find on StackOverflow without really understanding what it does. What the authors of this book, Machine Learning with PyTorch and Scikit-Learn, have managed to do is to keep the reader engaged giving a deeper illustration as to how the concepts work. In this book, you get practical code examples, a detailed explanation of how the various library tools work, and exposure to the mathematical concepts behind machine learning algorithms. In addition, what I like about the book unlike many machine learning books is that the authors have managed to intuitively explain how each algorithm works, how to use them, and the mistake you need to avoid.
I have not read a Machine Learning book that better explains Transformers as this one does. The authors have managed to give a detailed dive into this model architecture through well-explained codes and illustrations. As a reader, you walk away having intuitively grasped the concepts of attention and self-attention in ways that will make this crucial NLP architecture clear. You get exposed to pre-trained models from HuggingFace library which really helps to have that hands-on experience working with large datasets.
As they have done throughout the book, the authors have broken down those complex mathematical operations into simple explanations that are easy to follow. What I generally like about the book is how it seamlessly connects all the chapters, not throwing off the reader. There are numerous external resources quoted throughout the book. This helps spark that curiosity to dig deeper. In addition, you get introduced to PyTorch, getting exposed to all those sophisticated libraries that help the reader learn how to maximize their compute power. I would say it is not intimidating at all even if you have not used PyTorch before.
I would recommend this book to anybody seeking a textbook that is both easy to read and modern in its content. If were to rate the book I will give it a 10/10 as it really applies to both beginners and experienced practitioners, covers all the concepts one needs to apply in their operations, and acts as a quick reference.
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Reviewed in the United States on March 1, 2022
★★★★★ 5
Thorough Primer for Machine Learning and PyTorch
Format: Paperback
BLUF: A thorough primer for machine learning enthusiasts with plenty of theory to underscore its many practical examples. A definite must-have for anyone looking to add PyTorch to their machine learning tool belt.
PROS:
- Extremely thorough (if not comprehensive). I really appreciate that this book doesn't just thrust one into building models with PyTorch. It starts at the "beginning" and provides examples, theory, additional resources, and citations along the way.
- Theory. Those whose calculus and linear algebra courses ended many years ago will appreciate (if not remember exactly) the mathematical theory and notation that accompanies almost every paragraph. This book gives one the opportunity to "dig deeper" or stay in the shallows until the notation stops.
- Python. Rather than simply utilizing Scikit-Learn to illustrate concepts and introduce models, this book contains many sections where models (such as a Perceptron) are coded from the ground up so the reader can fully understand the underlying mechanics. Python enthusiasts will nerd out. Parents of small children might want to skip a few pages.
- Graphs, charts, and graphics. There are plenty of places where a drier text might have foregone the use of graphs. This text does not. It does however refrain from overusing them.
- PyTorch. This should be obvious from the title, but this text prioritizes PyTorch instead of TensorFlow. This is especially helpful for those looking for an alternative to Keras and TensorFlow as the PyTorch API is very user-friendly.
CONS:
- Almost too much code. This isn't a true "con" but anyone wanting to emulate or follow along with the examples would do well to get the digital edition so they can copy and paste.
- Length and complexity. Anyone hoping for a "quick read" or a "quick start guide" will be disappointed. This book hovers somewhere between an undergraduate primer and a graduate-level text for length and readability. This is not to say that it's difficult to read, merely that there are other "quick start" / "practical" texts out there that cater more to a lay audience.
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Reviewed in the United States on February 26, 2022