SKU: 31486470342

ARM Motorsports Audi 4.0T Downpipes - S6 S7 RS7 A8 S8

$315.00 $350.00
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

ARM Motorsports Audi 4.0T Downpipes - S6 S7 RS7 A8 S8HIGHLIGHTS Gain up to 37whp 42wtq Faster Turbo Spool Improved Exhaust Note Fully Reversible PROFILE The ARM 4. 0T Downpipes immediately improve backpressure in your exhaust system, allowing your Audi 4. 0T turbos to spool faster and generate more power lower in the RPM range. The OEM 4. 0T downpipes incorporate two large coffee can size catalysts which reduce exhaust flow and power from your 4. 0T. By replacing your OEM 4. 0T downpipes with the ARM 4.

      •  

HIGHLIGHTS

• Gain up to 37whp / 42wtq
• Faster Turbo Spool 
• Improved Exhaust Note
• Fully Reversible

PROFILE

The ARM 4.0T Downpipes immediately improve backpressure in your exhaust system, allowing your Audi 4.0T turbos to spool faster and generate more power lower in the RPM range. 

The OEM 4.0T downpipes incorporate two large coffee can- size catalysts which reduce exhaust flow and power from your 4.0T.  By replacing your OEM 4.0T downpipes with the ARM 4.0T downpipes you will eliminate this restriction and free up exhaust flow.

Another drawback of the OEM downpipes is they are designed to cross over each other.  The driver side turbo connects to the passenger side midpipe, and vice versa on the opposite side.  This forces the exhaust gasses to take a long pathway with several sharp kinks and turns. The ARM 4.0T downpipes begin and end on the same side to improve airflow and shorten the travel-path of the exhaust gasses.  This results in faster turbo spool, more torque, and improved throttle response.  


CONSTRUCTION

 The ARM 4.0T Downpipes are built from SS304 stainless steel to ensure build strength and weld integrity for the life of your Audi 4.0T.  You will never need another set of downpipes again!



Starting at the turbos, the ARM 4.0T downpipes are made from one solid 4.4" x 3" collector for durability.  This collector is welded to an OEM-style 5-Bolt flange that will fit any turbocharger upgrade for the 4.0T platform.  






The ARM 4.0T Downpipes include a stainless steel flex section to relieve stress from the turbos during aggressive acceleration, cornering, and braking. 


The ARM 4.0T Downpipes utilize the OEM transmission mounting brackets to further secure them in place during aggressive driving.



The ARM 4.0T Downpipes transition to a 2.25" 3-Bolt flange to match up perfectly to the OEM Midpipes or the ARM 4.0T Midpipes.



NEXT-LEVEL EXHAUST HARMONICS

While the ARM 4.0T Downpipes enhance the sound of your exhaust dramatically, if you are looking to take your exhaust note to the next level, the ARM 4.0T Midpipes are an easy upgrade to further open up the incredible sound of your 4.0T. 



Audi designed the OEM midpipes with dual resonators to suppress the sound of your 4.0T.  While that may be desirable for some drivers, as an enthusiast you want to hear more of the amazing sound generated by the twin-turbo V8 under the bonnet.  The ARM 4.0T Midpipes do exactly that.  If you install the upgraded midpipes while installing the downpipes, it only adds approximately 10 minutes to the installation, making it the perfect time to install the midpipes.  


IN THE BOX

• 2x ARM 4.0T Downpipes
• 2x ARM Turbo Gaskets
• 2x ARM Midpipe Gaskets
• 10x Replacement Turbo Studs
• 10x Turbo Stud Nuts
• 6x Midpipe Bolts
• 6x Midpipe Nuts


FITMENT GUIDE


Make Chassis Model Engine
AUDI
 C7
 S6
 4.0T
AUDI
 C7
 S7 4.0T
AUDI
 C7.5 S6
 4.0T
AUDI C7.5 S7 4.0T
AUDI D4 A8 4.0T
AUDI D4 S8 4.0T
AUDI C7 RS7 4.0T
AUDI C7.5 RS7 4.0T
 

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.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 31486470342

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4.7 ★★★★★
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A
Verified Purchase
Amanda Thomas
Massapequa, US
★★★★★ 5
Very nice and durable
Color: Purple, Color: Purple
The keyboard fits nicely inside for easy travel. It charges easy and comes with a charger for usb. It connects when on and turns off if not in use to conserve the battery.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
L
Verified Purchase
Luby Garcia
Cuba, US
★★★★★ 5
Highly functional and budget friendly
Color: Purple, Color: Purple
This Hamile keyboard case is a highly functional, budget-friendly 3-in-1 solution that transforms your iPad into a mini laptop setup. Offering solid everyday protection, a built-in stylus holder, and a vibrant backlit detachable keyboard, it’s a popular choice for students, casual writers, and professionals on the go. Multi-Generation Compatibility Detachable Bluetooth Keyboard: The tactile, purple keyboard attaches magnetically to the folio, allowing you to use it attached or entirely separate from the stand. Vibrant Backlighting: Features customizable backlit keys, making it incredibly easy to type in low-light environments like classrooms or late-night flights. Built-In Pencil Holder: Keeps your Apple Pencil or stylus securely nested inside the casing so you won't lose it while traveling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
D
Verified Purchase
Dveraciousshopper
Pawtucket, US
★★★★★ 5
Okay for the price!!! Good Quality!!
Color: Green
{Dveracious Shopper:- Just so you know, My reviews won't have fancy videos and photos sometimes but I post honest reviews based on the usability of these products and I did pay my own money to buy these products, so its not a free product review. I use it before I review it as I am committed to provide honest feedback based on the product's usability} My daughter chose and she is using it on her I pad. I love the functionality of it However not a fan of the removable keyboard, even though some may like it. it protects the I pad and that's what we won't. Has pretty color options too. Fits great.
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Reviewed in the United States on January 20, 2026
W
Verified Purchase
Wendy O
Omaha, US
★★★★★ 4
Good for the price
Color: Black
I used to have a Smart Keyboard. If you compare it to that (discontinued) or the Magic Keyboard, you’ll be unhappy. But I can’t imagine a better product at this price point. The good: • Case is substantial & protective. • When in use, the iPad stays upright (it rests in 1 of 2 grooves, so angle is mildly adjustable). • Keyboard is easy to install, & connects quickly when you turn it on (maybe 2 seconds) • Keys feel good when typing • Lights are fun (but you can turn them off, if you’re not into that). • It works great for casual use, & it’s so cheap (I paid $28). In comparison, the Magic Keyboard is $250. If you do a lot of typing though, you want to invest in getting something better. The meh: • The case is a bit fiddly to open & get set up, mainly bc the keyboard sits in the center flap when closed, but you have to move it down to the end in order to use it. • I type about 45 wpm, & it keeps up. There are occasional lags though. If you type fast, I think you’d be frustrated, when you have to stop & retype what it missed. • It turns off after a couple minutes, to save battery. Which is mildly annoying when I resume typing, & have to retype my sentence bc it needed to wake up. It only takes like 2 seconds, not a huge deal. But bc of this, I def wouldn’t recommend using during lectures or meetings where you have to keep up. For my casual use (maybe a couple hours per week), it works great. • You have to remember to turn it on & off, to conserve battery. You have to remember to charge it, & to do that you may need 2 charging cords for your iPad. The Magic Keyboard, in comparison, is powered by your iPad. You don’t even need to think about it.
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Reviewed in the United States on December 15, 2025
D
Verified Purchase
Deonna A
Waukegan, US
★★★★★ 5
Good purchase ! I recommend this one
Color: Purple
⭐️⭐️⭐️⭐️⭐️ Stylish, Functional, and Surprisingly Durable — A Great iPad Companion I’ve been using this purple case with a built-in keyboard for my 9th generation iPad, and I’m genuinely impressed with its overall quality. It hits the mark in several key areas: 🔹 Design & Aesthetics: The color is I purchased was a light purple—elegant without being overly flashy. It adds a pop of personality to my setup, which I appreciate. The stitching and build look well-finished, giving it a premium feel. 🔹 Keyboard Functionality: The attached keyboard connects easy and holds a strong charge. The keys are surprisingly responsive for a compact layout, and the typing experience is smooth and tactile—not mushy like some others I’ve tried. Great for emails, journaling, or casual work on the go. 🔹 Protection & Durability: The case feels sturdy without being bulky. It offers solid protection, especially around the corners, and the iPad feels secure when clipped in. After tossing it into bags and using it daily, it still looks and feels great—no odd flex or signs of wearing down fast 🔹 Touch & Comfort: The material has a soft-touch finish that feels great in the hand. It’s not slippery, and it doesn’t attract fingerprints easily. It also makes it comfortable to use the iPad in different positions—typing, drawing, or watching shows. 🔹 Extras & Usability: I like that the case doubles as a stand and supports multiple angles. The magnetic closure is a nice touch, keeping everything secure when closed. Overall, this case+keyboard combo offers a lot of value. It’s functional, stylish, and reliable—exactly what I was hoping for. If you’re looking for a practical upgrade that doesn’t sacrifice style or quality, I’d say this one’s worth a look.
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Reviewed in the United States on July 29, 2025

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