Milltek Sport Downpipes & Front Pipes - 2013-2018 Audi S8 D4 4.0 TFSI quattro Tiptronic

Ask an expert

Regular price: $5,754.00
Regular price
Sale price: $5,754.00
Unit price: per

Apply at checkout

Product variants

Subtotal: $5,754.00

Quantity:

Milltek Sport Downpipes & Front Pipes - 2013-2018 Audi S8 D4 4.0 TFSI quattro Tiptronic

Subtotal: $5,754.00

Not sure it fits? Text us your VINSee all fitment

Vendor: Milltek Sport

SKU: SSXAU953

Questions before you buy? Talk to a specialist.

Fitment and product questions · 9am–6pm Pacific

Call(310) 231-0292 Text(310) 886-3111 ChatLive chat

Price match: found it cheaper?
Secure checkout · Shop Pay · Affirm
AutoTalent since 2006

Free Shipping

Free standard shipping on orders over $99

Coupon Code on First Order

Price Match Guarantee

Free shipping on $99+ order

30-days Returns

Overview

Milltek Sport downpipes and front pipes, cat pipes and front pipes for the Audi S8 D4 4.0 TFSI quattro Tiptronic (2013-2018). These parts open up the hot side of the exhaust, cut backpressure and sharpen throttle response. Pick the option that matches your exhaust: some are built to fit a Milltek cat-back, others bolt to the stock cat-back.

Compare every part number

Part #	Option	Fits with (Milltek)	Stage 2 ECU remap	Race/Track only	Pipe size	Fit time
SSXAU953	CATS: Requires a Stage 2 ECU remap Fits only with Milltek Sport Cat Back (lambda cables need extending)	Requires a Stage 2 ECU remap Fits only with Milltek Sport Cat Back (lambda cables need extending)	Required	Yes	2.76" (70.00mm)	-
SSXAU954	Cat Replacement Pipes: Requires a Stage 2 ECU remap Fit only with Milltek Sport Cat Back (lambda cables need extending)	Requires a Stage 2 ECU remap Fit only with Milltek Sport Cat Back (lambda cables need extending)	Required	Yes	2.76" (70.00mm)	-

"Race/Track only" and "Stage 2 ECU remap" are shown only where Milltek states them. A dash means Milltek does not state it for that part.

What comes with each part number

SSXAU953 (Hi-Flow Sports Cats): 1 x LH 76mm Primary Cat Bypass Downpipe (fits LH Turbo) (Cerakote Semi-Gloss Black Finish); 1 x RH 76mm Primary Cat Bypass Downpipe (fits RH Turbo) (Cerakote Semi-Gloss Black Finish); 1 x LH Hi-Flow Sports Catalyst (under-floor); 1 x RH Hi-Flow Sports Catalyst (under-floor)
SSXAU954 (Cat Replacement Pipes): 1 x LH 76mm Primary Cat Bypass Downpipe (fits LH Turbo) (Cerakote Semi-Gloss Black Finish); 1 x RH 76mm Primary Cat Bypass Downpipe (fits RH Turbo) (Cerakote Semi-Gloss Black Finish); 1 x LH Catalyst Bypass Pipe (under-floor); 1 x RH Catalyst Bypass Pipe (under-floor)

Fitment

Audi S8 D4 4.0 TFSI quattro Tiptronic, 2013-2018. US-market model listing. Confirm your exact model, engine and options before ordering.

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

Some options need a Stage 2 ECU remap. Read the option name before you order.
Fitting times are Milltek estimates for a professional installer.

Fitment

Year	Make	Model
2013–2018	Audi	S8

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