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Your Vehicle 2015 Mercedes Benz S550 4Matic Sedan 222.185 V8 4.6L
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Semi-Resonated (Road+) Cat-Back Exhaust System

An entire system from the cat back for a full sound overhaul!
For Coupe Models Only
Milltek Sport
Milltek Sport
ES#:
4159757
Mfg#:
B9RS5SEMIRESONAT
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Semi-Resonated (Road+) Cat-Back Exhaust System

Starting at: $3739.99
3739.99
Starting at: $3739.99
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This product is lifetime replacement eligible
This product is backed by our
Lifetime Replacement Program! Read more here
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Semi-Resonated (Road+) Cat-Back Exhaust System - Polished Oval Trims
(Includes additional Valve Motors for Facelift models)
For 2020+ models
4623296 SSXAU991
Availability:
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in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
4107.99
Semi-Resonated (Road+) Cat-Back Exhaust System - Cerakote Black Oval Trims
2.75" Stainless Steel with Cerakote Black oval tips - Retains valves from OE system
For models up to 2019
3663641 SSXAU757
Availability:
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in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
3904.99
Semi-Resonated (Road+) Cat-Back Exhaust System - Cerakote Black Oval Trims
(Includes additional Valve Motors for Facelift models)
For 2020+ models
4623295 SSXAU990
Availability:
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Est. Ship Date:
in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
4272.99
Semi-Resonated (Road+) Cat-Back Exhaust System - Titanium Oval Trims
2.75" Stainless Steel with Titanium oval tips - Retains valves from OE system
For models up to 2019
3698733 SSXAU813
Availability:
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Est. Ship Date:
in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
4137.99
Semi-Resonated (Road+) Cat-Back Exhaust System - Titanium Oval Trims
(Includes additional Valve Motors for Facelift models)
For 2020+ models
4623297 SSXAU996
Availability:
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Est. Ship Date:
in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
4505.99
Semi-Resonated (Road+) Cat-Back Exhaust System - Burnt Titanium Oval Trims
2.75" Stainless Steel with Burnt Titanium oval tips - Retains valves from OE system
For models up to 2019
3698729 SSXAU814
Availability:
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Est. Ship Date:
in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
4248.99
Semi-Resonated (Road+) Cat-Back Exhaust System - Burnt Titanium Oval Trims
(Includes additional Valve Motors for Facelift models)
For 2020+ models
4623279 SSXAU997
Availability:
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Est. Ship Date:
in 3 Business Days
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
4617.99

Product Details

For Coupe Models Only

Performance to blow your mind, not your ears! Improve performance and your vehicle's sound with this cat-back exhaust system from Milltek.
Milltek engineers took on the task of finding the perfect balance between maximum performance increase and a responsible noise level in each and every system, to appeal to enthusiasts of all levels. All products are direct replacements for factory exhaust systems, meaning no modifications are required for proper fitment.

This cat-back exhaust system is manufactured of a 2.76" T304 anti-magnetic stainless steel that is less susceptible to discolouration when compared to other systems found on the market. This quality T304 stainless steel is used on all of the pipework including the construction of the mufflers and resonators. Mandrel bending ensures full flow bends for better exhaust gas flow and Milltek systems are increased in bore to ensure the ultimate performance without the loss of mid-range torque. This exhaust allows you to retain the use of the factory exhaust valve system.

The valved mufflers reuse the factory valves from the OE system and seamlessly integrates into the car's vacuum system without any modification. The valve system is operated like stock through the Drive Select options. 
 

This Part Fits the Following Vehicles

Make Model Submodel Engine Special Fitment Notes
Audi B9 RS5 Quattro 2.9T Use vehicle selector to confirm fitment
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.
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Audi B9 RS5 Catback Exhaust
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Audi B9 RS5 Catback Exhaust

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