Audi A4 B8: Exhaust System Reviews

An aftermarket exhaust in your Audi A4 will allow gases to exit the engine with less restriction, which will increase the horsepower, decrease fuel consumption, and let it sing at full operatic voice.

By Bassem Girgis - March 30, 2016

This article applies to the Audi A4 B8 (2009-2015).

The Audi A4's engine produces lot of exhaust gases, which needs to exit the car as quickly as possible for maximum performance. The aftermarket world of exhausts offer the least restrictive pipes, which means more horsepower and less fuel consumed, plus a much louder, more aggressive sound. The guide below will shine some light on the most popular brands of exhausts on the market today, and what people on the forums think about them. Read on to help choose the right exhaust for you.

Exhaust Reviews


AWE
Milltek
Stasis
APR
Price
$915-1,400 $2,399 $796 $2,499
Piping Diameter

2.50"

2.37"

2.25"

3"

Power Gains
8-9 HP 10 HP 10-15 HP 10-15 Hp
Sound
Medium Medium Low Medium
Fitment
Kit Required Direct Direct Direct
Best Quality: APR
Best Value: Stasis

AWE

AWE exhaust

Price – $915-1,400

Piping Diameter – 2.50"

Power Gains – 8-9 HP

Sound – Medium

Direct Fit – Kit Required

This exhaust is known to be very neighbor and law enforcement friendly, as well as mellow when idling, but much more aggressive when you step on the gas pedal. This company claims their exhaust will give you eight to nine more horsepower, and six to seven more lb-ft torque. It comes available with polished stainless or diamond black tips, so whatever your style is, flashy or stealth, they have what you want. This exhaust is not direct fit, which means you will have to purchase a kit separately to install it on your Audi. This exhaust will sure add some power and personality to your Audi. Recommended if you're looking to increase your power, and you don't mind a more difficult installation process.

Milltek

Milltek exhaust

Price – $2,399

Piping Diameter – 2.37"

Power Gains – 10 HP

Sound – Medium

Direct Fit – Yes

This reputable exhaust is made out of aircraft grade stainless steel, so if you're looking for durability, look no further. Buyers who purchased this product swear they get a noticeable improvement in their fuel consumption, and even though they bought it for the better performance, they can't stop talking about the fuel economy. Unlike the AWE exhaust, this exhaust is a direct fit, so you can install it easily. The company recommends you replace your restrictive air filter with a cold air intake for the ultimate increase in performance. Recommended if you're looking for a very durable, quality exhaust, and better fuel economy.

Stasis

Stasis exhaust

Price – $796

Piping Diameter – 2.25"

Power Gains – 10-15 HP

Sound – Low

Direct Fit – Yes

This polished system is as flashy as you can get. Even though this exhaust has a low volume to it, it still sounds much deeper and better than your stock one. With a deep bass roar, this exhaust is a classy one that won't wake your neighbors. It features a smaller 2.25" pipe (compared to other aftermarket systems) that is still designed to be less restrictive. The company claims this product can increase your power by 10 to 15 horsepower, though that may depend on getting the proper computer tune as well. Stasis offers a limited lifetime warranty, which is a good sign that they stand behind their product. Some customers didn't install the resonator and found the low tone becomes an annoying one. Recommended if you're looking for a quiet low cost product with a great warranty.

APR

APR exhaust

Price – $2,499

Piping Diameter – 3"

Power Gains – 10-15 HP

Sound – Medium

Direct Fit – Direct

Behold the exhaust with the 3" pipe; the biggest pipe of our competitors above. This system can increase your performance by up to 15 horsepower, and let's not forget about the better fuel economy. This exhaust has the least restriction of any exhaust, which means making your motor work a lot less, and lets your turbo spool up faster. The less your engine works, the less fuel it uses, thus the happier your wallet is. This product comes ready to be installed; with brand new hardware down to the smallest bolt, you will not need to reuse any of the old parts. This product might be pricey, but when you step on your gas pedal, you will hear a roar and your Audi will take off faster than it ever did, then you will know it was all worth it. Recommended if you want the best product with the least restrictions, and don't care about cost.

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