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Milltek Sport exhaust system parts for 2012-2018 Audi S6 4.0 TFSI C7 quattro (part SSXAU331): pipework, silencers and polished silver tailpipe tips

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Close-up of polished GT-100 round Milltek Sport exhaust tips for the 2012-2018 Audi S6 4.0 TFSI C7 quattro

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Milltek Sport exhaust system parts for 2012-2018 Audi S6 4.0 TFSI C7 quattro (part SSXAU737): pipework, silencers and black tailpipe tips

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Close-up of black GT-100 round Milltek Sport exhaust tips for the 2012-2018 Audi S6 4.0 TFSI C7 quattro

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Milltek Sport exhaust system parts for 2012-2018 Audi S6 4.0 TFSI C7 quattro (part SSXAU443): pipework, silencers and black tailpipe tips

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Close-up of polished GT-100 round Milltek Sport exhaust tips for the 2012-2018 Audi S6 4.0 TFSI C7 quattro (photo 2)

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Milltek Sport exhaust system parts for 2012-2018 Audi S6 4.0 TFSI C7 quattro (part SSXAU448): pipework, silencers and black tailpipe tips

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Close-up of black GT-100 round Milltek Sport exhaust tips for the 2012-2018 Audi S6 4.0 TFSI C7 quattro (photo 2)

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Milltek Sport exhaust system parts for 2012-2018 Audi S6 4.0 TFSI C7 quattro (part SSXAU445): pipework, silencers and black tailpipe tips

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Close-up of titanium GT-100 round Milltek Sport exhaust tips for the 2012-2018 Audi S6 4.0 TFSI C7 quattro

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Milltek Sport Cat-Back Exhaust - 2012-2018 Audi S6 4.0 TFSI C7 quattro

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Regular price: $2,840.00
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Milltek Sport Cat-Back Exhaust - 2012-2018 Audi S6 4.0 TFSI C7 quattro

Subtotal: $2,840.00

Not sure it fits? Text us your VINSee all fitment

Vendor: Milltek Sport

SKU: SSXAU331

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Overview

Upgrade the Audi S6 4.0 TFSI C7 quattro (2012-2018) with a Milltek Sport cat-back exhaust. Milltek builds each system around the car it fits: mandrel-bent T304L stainless pipework, a larger bore than stock for freer flow, and a tuned sound you choose, from quiet and refined to loud and uncorked.

Sound options

Resonated options keep cruising drone down and sound closer to a refined sports car.
Non-resonated (louder / race) options give the loudest, rawest note. Better for track days and weekend cars than daily commuting.
Valved systems let the car switch between quiet and loud.

Choose your setup

Sound: the system type and sound level.
Tip Finish: the tailpipe trim.
Optional Valve Remote: add a Milltek valve remote so you can open and close the exhaust valves yourself.

Cat-back systems: compare every part number

Part #	Sound	Tip finish	Pipe size	Fit time	Race/Track only
SSXAU331	Non-resonated (louder) - Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes	Standard (OE Tips)	2.76" (70.00mm)	-	-
SSXAU737	Non-resonated (louder) - Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes	Cerakote Black	2.76" (70.00mm)	-	-
SSXAU448	Non-resonated (louder). Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate	Cerakote Black	2.76" (70.00mm)	-	-
SSXAU443	Non-resonated (louder). Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate	Polished	2.76" (70.00mm)	-	-
SSXAU445	Non-resonated (louder). Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate	Titanium	2.76" (70.00mm)	-	-
SSXAU560	Resonated (quieter) - Recommend with Valve Delete Modules SSXAU405 to prevent ECU fault codes	Cerakote Black	2.76" (70.00mm)	-	-
SSXAU332	Resonated (quieter) - Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes	Polished	2.76" (70.00mm)	-	-
SSXAU561	Resonated (quieter) - Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes	Titanium	2.76" (70.00mm)	-	-
SSXAU447	Resonated (quieter). Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate	Cerakote Black	2.76" (70.00mm)	-	-
SSXAU444	Resonated (quieter). Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate	Polished	2.76" (70.00mm)	-	-
SSXAU446	Resonated (quieter). Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate	Titanium	2.76" (70.00mm)	-	-

What comes with each cat-back

SSXAU331: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Replacement Assembly; 1 x LH Rear Silencer Assembly; 1 x RH Rear Silencer Assembly; 4 x Polished Tips; Quad 100mm GT100
SSXAU737: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Replacement Assembly; 1 x LH Rear Silencer Assembly; 1 x RH Rear Silencer Assembly; 4 x Cerakote Black Tips; Quad 100mm GT100
SSXAU448: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Replacement Assembly; 1 x LH ValveSonic Rear Silencer; 1 x RH ValveSonic Rear Silencer; 4 x Cerakote Black Tips; Quad 100mm GT100
SSXAU443: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Replacement Assembly; 1 x LH ValveSonic Rear Silencer; 1 x RH ValveSonic Rear Silencer; 4 x Polished Tips; Quad 100mm GT100 Milltek note: Non-resonated (louder). Polished tips. Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate..
SSXAU445: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Replacement Assembly; 1 x LH ValveSonic Rear Silencer; 1 x RH ValveSonic Rear Silencer; 4 x Titanium Tips; Quad 100mm GT100
SSXAU560: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Assembly; 1 x LH Rear Silencer Assembly; 1 x RH Rear Silencer Assembly; 4 x Cerakote Black Tips; Quad 100mm GT100 Milltek note: Resonated (quieter) with Cerakote Black tips - Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes.
SSXAU332: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Assembly; 1 x LH Rear Silencer Assembly; 1 x RH Rear Silencer Assembly; 4 x Polished Tips; Quad 100mm GT100
SSXAU561: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Assembly; 1 x LH Rear Silencer Assembly; 1 x RH Rear Silencer Assembly; 4 x Titanium Tips; Quad 100mm GT100
SSXAU447: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Assembly; 1 x LH ValveSonic Rear Silencer; 1 x RH ValveSonic Rear Silencer; 4 x Cerakote Black Tips; Quad 100mm GT100
SSXAU444: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Assembly; 1 x LH ValveSonic Rear Silencer; 1 x RH ValveSonic Rear Silencer; 4 x Polished Tips; Quad 100mm GT100 Milltek note: Resonated (quieter). Polished Tips. Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate..
SSXAU446: 1 x LH Front Pipe Assembly; 1 x RH Front Pipe Assembly; 1 x Centre Silencer Assembly; 1 x LH ValveSonic Rear Silencer; 1 x RH ValveSonic Rear Silencer; 4 x Titanium Tips; Quad 100mm GT100

Optional valve remote

SSXAU675: 1 x Active Valve Control System (For vehicles with factory fitted valve control system and two electronic valves). Milltek note: Active Valve Control System (Changes default valve behaviours, override with ESP button to open on demand).

Fitment

Audi S6 4.0 TFSI C7 quattro, 2012-2018. US-market model listing. Confirm your exact model, engine and options before ordering, and message us if you are not sure.

About Milltek Sport

T304L stainless steel, CNC mandrel bent.
Designed and developed in Derby, UK with a US facility in Knoxville, Tennessee, and tested at the Nürburgring.
Company founded in 1983.

Warranty

Milltek covers most products with a lifetime guarantee. Downpipes, hi-flow catalysts and any part with valves are covered for 2 years or 80,000 km, and electronic products for 2 years. Claims go through the authorized dealer you bought from, and cover the original purchaser only. Full terms: millteksport.com/Warranty.html

Notes

Fitting times are Milltek estimates for a professional installer.

Fitment

Year	Make	Model
2012–2018	Audi	S6

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

Reviews & questions