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Description
ARM Motorsports AUDI A4 B8 3" TEST PIPEHIGHLIGHTS Gain up to +24whp 30wtq Faster Turbo Spool Improved Exhaust Note Better Throttle Response 3" Design Precise Fitment PROFILE This A4 test pipe is a powerful and easy 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
HIGHLIGHTS
• Gain up to +24whp / 30wtq
• Faster Turbo Spool
• Improved Exhaust Note
• Better Throttle Response
• Faster Turbo Spool
• Improved Exhaust Note
• Better Throttle Response
• 3" Design
• Precise Fitment
PROFILE
This A4 test pipe is a powerful and easy 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 A4 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 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 A4 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.
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
• 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 |
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.
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Great Scale
Size: 3 kg - Normal Size, Size: 3 kg - Normal Size
Great quality, it’s weight precision it’s great, easy to celan, the battery life it’s god, the value for money it’s god as well, and it’s the perfect size compact and functional to many coffee preparation even Chemex 8 cup size.
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Reviewed in the United States on December 18, 2025
★★★★★ 5
Accurate and easy to use
Size: 3 kg - Normal Size, Size: 3 kg - Normal Size
At the moment, I can't think of anything I dislike about this scale.
The buttons are responsive, the measurements are accurate (I checked the readings with a couple of calibration weights from a scientific scale), the displays are clear.
Operation in daily use is very simple.
1. Turn on scale
2. After self test, place carafe and filter
3. Press "T" to tare
4. Add grinds
5. Press "||>" to weigh the grinds. This automatically tares the scale again and sets the timer to standby. It also activates the coffee to water ratio display
6. Add water and the timer automatically starts so you get a precise bloom time.
The added water is weighed and displayed as you pour and the coffee to water ratio display gives you an instantaneous reading, so you can brew your perfect cup of coffee each time.
The scale has a large capacity and precise resolution so it works for single small cups to large pots.
All in all, the best scale I've tried so far and might pick up another one when they go on sale (again).
Highly recommended.
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Reviewed in the United States on July 9, 2024
★★★★★ 5
Perfect!
Size: 3 kg - Normal Size
It works perfect. The product looks strong and looks so nice.
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Reviewed in the United States on April 15, 2026
★★★★★ 4
Mostly Great, But With One Problem
Size: 3 kg - Normal Size
Overall, this is a good scale and I do like it. However, it has one flaw that I'll mention later. First, the things I like. This is a nice looking scale. I like the design and the different colored displays for time and weights. The stainless steel on black is a classic look and very stylish in my opinion. The size is just right for brewing with French press or Chemex style brewers. It has a lot of plastic, but that is how all scales of this size are, especially in this price range. Having the ratio displayed is really nice. I use that about as much as looking at the grams during a pour over. I've also been using the automatic timing feature. I didn't think I'd like that, but it is actually quite useful. I've been using it for a month off of the first charge so I think that the battery life is good. Its also nice to be able to turn off the sound so I don't have to listen to beeping early in the morning when the rest of the family is sleeping. Being able to change the units of measure is great. I've weighed coffee, baking ingredients and even small packages prior to mailing them. It handles anything under 6 lbs. The display is sensitive and reads quickly. Which leads me to the one negative about this thing. When it is weighing room temperature items like beans or an empty brewer, its accurate and gives a steady reading. However, when you start introducing hot items (like brewing coffee which is what this is for) it starts to drop weight by 0.1g every 10 to 20 seconds. Even with the included silicone cover. I've added a cork trivet and another silicone pad under the brewer which didn't seem to help much. Eventually they warm up and the issue starts. Any raise in temp causes the unit to start lowering the weight as previously described. That's why I only gave it four stars. While this is annoying to see, it doesn't seem to mess with the overall brewing ratio or mess up my coffee brewing at all. By the time its doing this, I've usually made my pours and am in the 4 to 5 minute steeping period prior to finishing and decanting. At that point, I'm really only using the timer function anyway. Therefore, I didn't give it a lower rating since I like everything else about it and its not very expensive. All things considered, I think its a good value for the money and gets the job done.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Accurate and fits Breville bambino drip tray!
Size: 2 kg - Mini Size
Great mini scale! Fits smaller machine drip trays with out over hang. Very accurate!
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Reviewed in the United States on May 27, 2026