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Happy New Year!
Happy New Year!

Audi C8 4.0T Downpipes - C8 RS6/RS7 D5 A8/S8

Original price $497.00
Original price $497.00 - Original price $497.00
Original price $497.00
Current price $467.00
$467.00 - $467.00
Current price $467.00


  • 30 Day Money-Back Guarantee | IN STOCK

HIGHLIGHTS

• Gain up to 41whp / 45wtq
• Faster Turbo Spool 
• Improved Exhaust Note
• Fully Reversible
• Removable Midpipe Flanges


PROFILE

The ARM C8 RS Downpipes immediately increase power, torque, and throttle response on your 4.0T-powered C8 RS6, RS7, or D5 S8.  By improving backpressure in your exhaust system, the ARM C8 4.0T Downpipes allow your Audi RS6/RS7 turbos to spool faster, generating more power and torque, especially in the lower in the RPM range, all while making your 4.0T sound incredible! 



The OEM C8 RS6/RS7 downpipes incorporate two large catalysts which restrict exhaust flow and power from your Audi C8 RS6/RS7.  By upgrading your OEM RS6/RS7 downpipes with the ARM C8 RS6/RS7 downpipes you will eliminate this restriction and improve exhaust flow, increasing power and torque.

RS6 Downpipes

CONSTRUCTION

 The ARM C8 RS6/RS7 Downpipes are built from SS304 stainless steel to ensure bulletproof build strength and weld integrity for the life of your Audi RS6/RS7.  You will never need another set of downpipes again!  The ARM C8 RS Downpipes start at the turbochargers with a 5.75" CNC machined V-Band flange.  This flange allows the ARM RS Downpipes to connect to the OEM turbos, or upgraded turbos that use the same size exhaust side housings.  The ARM RS Downpipes are designed with a centering key in the V-Band to ensure the downpipes line up with the OEM midpipes or the ARM C8 4.0T Midpipes perfectly. 

RS6 Downpipes

The ARM RS Downpipes maintain a full 304 Stainless Steel 5.5" body all the way until where the design turns downwards towards the midpipes, where they gradually reduce down to 3" in order to connect with the ARM C8 4.0T Midpipes, or OEM Midpipes. 

The ARM RS Downpipes have a improved design feature which allows for easier installation compared to OEM style downpipes.  The ARM RS Downpipes feature a removeable midpipe flange, which saves healthy amount of your precious time during installation.  The top inside bolt on many downpipes is unnecessarily difficult to reach, even with an assortment of extensions and swivel sockets, it can take quite some time, bloody knuckles and four letter words to get these torqued down properly.  The ARM RS Downpipes make this flange separate from the rest of the downpipes, allowing you to secure the midpipe flange to the midpipe before connecting it to the downpipe, which then only requires one, easy to reach, exhaust clamp to fully secure the midpipe connections.  

C8 RS6 Downpipes

IN THE BOX

• 2x ARM RS Downpipes
• 2x ARM Midpipe Flanges
• 2x Exhaust Clamps
• 2x Midpipe Gaskets
• 6x Midpipe Bolts
• 6x Midpipe Nuts


FITMENT GUIDE


Make Chassis Model Engine
AUDI
C8
RS6
4.0T
AUDI
C8
RS7 4.0T
AUDI
D5 S8 4.0T
AUDI D5 A8 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.
*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)