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AUDI A5 3" TEST PIPE - ARM Motorsports

AUDI A5 3" TEST PIPE

by armmotorsports
$197.00 - $197.00
$197.00
$197.00 - $197.00
$197.00
  • 30 Day Money-Back Guarantee | IN STOCK

HIGHLIGHTS

• Gain up to +24whp / 30wtq
• Faster Turbo Spool
• Improved Exhaust Note
• Better Throttle Response
• 3" Design
• Precise Fitment
  

PROFILE

This is a simple and affordable bolt-on alternative to a full downpipe exhaust upgrade. The ARM Test Pipe replaces the section of the OEM exhaust that is the most restrictive on the 2.0T, which is bolted directly onto the turbocharger housing. The OEM section of the exhaust is equipped with a catalytic converter from the factory, and by installing this upgraded catless exhaust section, your A5 will allow more airflow and decrease back-pressure, which can produce up to +24whp and +30wtq on tuned cars.



The improved power and torque is most noticeable lower in the rpm range, where the stock system stifles exhaust flow. After installing the Test Pipe, you will also experience increased throttle response and improved turbo spool because the faster flowing exhaust will spin the turbocharger quicker which will result in hitting target boost levels faster. The result: faster acceleration, quicker 0-60mph and 1/4 mile times.

The ARM Test Pipe will also greatly improve the sound of the exhaust, even with the rest of the system in stock form. It's stunning to see how much the OEM exhaust not only kills power but also sound. After upgrading to an ARM Test pipe, expect a deeper and more aggressive sound on your A5 2.0T. 
 

CONSTRUCTION

The ARM Test Pipe is constructed of 3" Stainless Steel for high-flowing performance and longevity. Included are two O2 bungs where the factory O2 sensors can be reinstalled or blocked off with the two included bolts. 
If you are installing the ARM Test Pipe on a stock or stage 1 ECU tune, this now opens the doors to run advanced boost settings. With the high flowing 3" Test Pipe, the 2.0T engine can now handle increased exhaust flow from higher boost targets.

The ARM Test Pipe also features a two CNC machined flanges to bolt directly up to the OEM exhaust system and turbo. 


The ARM B8 Test Pipe also features a mounting bracket that lines up with the OEM location mounting point. This was added to reduce the risk of vibration and to hold the downpipe in place. 



If you run this system without an ECU tune or O2 sensor fix, expect to get a check engine light. This can be resolved by installing an upgraded ECU programmer or using an O2 sensor fix adapter. 
 

IN THE BOX

• ARM 3" Catless Downpipe
• Hardware & Gasket Kit
  

FITMENT GUIDE

Make Model Submodel Engine
Audi B8 A4 FWD 2.0T
Audi B8 A4 Quattro 2.0T
Audi B8 A5 Quattro 2.0T
Audi B8 Allroad Quattro 2.0T
Audi B8 Q5 Quattro 2.0T

ARM MOTORSPORTS LIFETIME WARRANTY

Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.

This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles which may never be used on a public road.
*Kits are made-to-order. As we do not physically keep everything in stock, kits have a ship time of about 3 weeks after your payment has processed. This is common for the N54 Single Turbo market if you look on other websites.

Unleash the full potential of your N54 engine with our Top Mount Single Turbo Kit, engineered for seamless fitment, durability, and big power capability. Designed to support 800whp+, this kit is the ultimate upgrade for those who demand power without compromise.

High-Quality 304 Stainless Steel Manifold

Crafted from 304 stainless steel, the manifold offers superior heat resistance, corrosion protection, and structural integrity. Unlike lower-grade materials, 304 stainless ensures long-term reliability under extreme heat and boost pressures, making it ideal for high-performance applications. The precision-engineered tubular design is optimized for maximum exhaust flow, reducing backpressure and enhancing turbo efficiency. This manifold is similar to ones being sold on AliExpress and other overseas markets. However, we've partnered directly with the manufacturer to provide these manifolds in the highest of quality. Unlike those that are drop-shipping similar manifolds from unreliable sources. You are purchasing directly from the source.

Industry-Leading Fitment

Fitment has been meticulously tested and compared against all major top-mount kits on the market, and ours ranks among the best. The compact yet efficient design ensures hassle-free installation, eliminating clearance issues that plague other kits.

Smart Wastegate Placement

No more tearing the entire kit apart just to make a simple wastegate adjustment. Our strategically placed wastegate design allows for quick, easy access, so you can fine-tune your setup without unnecessary downtime.

Built for Serious Power

With the ability to support 800whp+, this kit is designed for enthusiasts pushing their N54 to the limit. Whether you’re chasing high-speed pulls or dominating the track, this setup provides the boost response, reliability, and power potential you need.

So what's included? 

(x1) Top Mount T4 Manifold
(x1) Relocated Coolant Waterpipe 
(x2) Coolant Port Block Off Plugs
(1x) -4 Oil Feed Adapter
(1x) Rear Oil Drain Freeze Plug
(1x) 5/8" ID Oil Drain Hose
(1x) 5/8" Oil Drain Barb 
(x1) -4 Stainless Steel Oil Feed Hose + Adapter
(x16) OEM Exhaust Manifold Studs
(x16) OEM Reduced Length Exhaust Manifold Nuts
(x6) Elring Exhaust Manifold Gaskets
(1x) T4 Turbo Blanket
(x3) O-Rings
(1x) Turbo-To-Intercooler Piping
(x1) Turbo (Optional)
(x1) 3" V-Band Hood Exit (Optional)
(x1) 44mm Wastegate (Optional)