SKU: 35344290930

Milltek 3" Performance Cat Back Exhaust

$830.25 $922.50
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

Milltek 3" Performance Cat Back ExhaustInstalling a high flow catback exhaust is a quick way to pick up horsepower and torque. A catback exhaust will also give your 8V Audi S3 a sportier tone. All Milltek catback exhaust systems feature a bolt on design and mate seamlessly with your factory or most aftermarket downpipes. The resonated catback exhaust features a center resonator and rear muffler producing a more refined and quieter exhaust tone while the non resonated systems incorporate

Installing a high flow catback exhaust is a quick way to pick up horsepower and torque. A catback exhaust will also give your 8V Audi S3 a sportier tone. All Milltek catback exhaust systems feature a bolt-on design and mate seamlessly with your factory or most aftermarket downpipes.

The resonated catback exhaust features a center resonator and rear muffler producing a more refined and quieter exhaust tone while the non-resonated systems incorporate only a rear muffler and provide a louder more aggressive tone compared to the resonated systems.

The S3 is equipped with electronic exhaust control valves which limit the exhaust tone under partial throttle. These systems give you the option to keep OR eliminate the factory electronic valves.

Milltek Sport exhausts are produced in high quality type-304 aircraft grade 3" stainless steel tubing. This quality of stainless steel is used on all pipework and the total construction of the silencer. Mandrel bending ensures full flow bends for better gas flow and Milltek systems are increased in bore to ensure ultimate performance without the loss of mid-range torque.

Tailpipe trim options include: Quad 100mm Round or Oval - Polished, Cerakote Black Velvet and Titanium finishes.








Milltek Part Numbers

SSXAU542 - Non-Resonated Catback Exhaust/Non-Valved - (Round Polished Tips)
SSXAU541 - Non-Resonated Catback Exhaust/Non-Valved - (Round Black Tips)
SSXAU543 - Non-Resonated Catback Exhaust/Non-Valved - (Round Titanium Tips)
SSXAU540 - Non-Resonated Catback Exhaust/Non-Valved - (Oval Polished Tips)
SSXAU539 - Non-Resonated Catback Exhaust/Non-Valved - (Oval Black Tips)
SSXAU471 - Non-Resonated Catback Exhaust/Valved - (Round Polished Tips)
SSXAU470 - Non-Resonated Catback Exhaust/Valved - (Round Black Tips)
SSXAU472 - Non-Resonated Catback Exhaust/Valved - (Round Titanium Tips)
SSXAU473 - Non-Resonated Catback Exhaust/Valved - (Oval Polished Tips)
SSXAU474 - Non-Resonated Catback Exhaust/Valved - (Oval Black Tips)


SSXAU547 - Resonated Catback Exhaust/Non-Valved - (Round Polished Tips)
SSXAU546 - Resonated Catback Exhaust/Non-Valved - (Round Black Tips)
SSXAU548 - Resonated Catback Exhaust/Non-Valved - (Round Titanium Tips)
SSXAU545 - Resonated Catback Exhaust/Non-Valved - (Oval Polished Tips)
SSXAU544 - Resonated Catback Exhaust/Non-Valved - (Oval Black Tips)
SSXAU476 - Resonated Catback Exhaust/Valved - (Round Polished Tips)
SSXAU475 - Resonated Catback Exhaust/Valved - (Round Black Tips)
SSXAU477 - Resonated Catback Exhaust/Valved - (Round Titanium Tips)
SSXAU478 - Resonated Catback Exhaust/Valved - (Oval Polished Tips)
SSXAU479 - Resonated Catback Exhaust/Valved - (Oval Black Tips)

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: 35344290930

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4.5 ★★★★★
Based on 12 reviews
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Steph E
Port Orchard, US
★★★★★ 5
Quality
Size: 3X-Large, Color: Dusty Rose Melange
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
A
Verified Purchase
Adriana Vasilak
Draper, US
★★★★★ 5
ASICS Gel Running Shoes – Comfortable, Lightweight & Perfect for Gym and Running
Size: 10.5 X-Wide, Color: Black/White, Size: 10.5 X-Wide, Color: Black/White
I recently tried a pair of ASICS Gel sneakers, and I’m really impressed. They are extremely comfortable, with great cushioning that makes a big difference during workouts. I’ve used them both at the gym and for running, and they perform very well in both situations. The support is excellent, and they feel stable without being too heavy. I especially like how they absorb impact when running, which helps reduce stress on my feet and knees. They also have a nice fit and feel breathable, so my feet don’t get too hot. Overall, I’m very happy with them. If you’re looking for comfortable and reliable sneakers for the gym and running, I would definitely recommend ASICS Gel shoes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
B
Verified Purchase
Benyamin
Charlottesville, US
★★★★★ 5
Great Shoes by Asics
Size: 9.5 X-Wide, Color: Piedmont Grey/Black
Comfortable and durable as heck; classic Asics quality. I love the casual appearance of it, which means I can wear it on a daily basis too. True to the size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
F
Verified Purchase
Francismommyof3
Grantham, US
★★★★★ 5
Excellent for a 4E wide foot!
Size: 9 X-Wide, Color: Piedmont Grey/Black
As a female with a wide foot, it is very hard to find a good, comfortable shoe for walking, running and hiking. These were immediately comfortable and really didn't require a break in, although they are more comfortable after a few days of use. My 1st day I put about 5 miles on them and they were great. The cushion isn't like a cloud, but it's there and very responsive. These are very supportive and breathable. I have gone on a few Easy to moderate hikes with them and they're just fine for a dryer trail. They have good grip for rocks as well. 10/10 for these! I will also add that I underpronate, and these provide wonderful stability for that.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 4
Great comfort, but not built for long-term daily use
Size: 9.5 X-Wide, Color: Black/White, Size: 9.5 X-Wide, Color: Black/White
I've had this shoe for almost a year now. I use it almost daily on a walking pad while working from home, plus as a gym shoe. After nearly a year of this routine, I've noticed considerable wear on the sole. Don't get me wrong: the shoe is great and very comfortable, looks decent, and fits great at the start, and has good breathability. However, that comfort has started to fade as the shoe has worn down. Gel-Contends 9 is a really good shoe, but definitely not a long-term, heavy-use shoe. Perfect for casual or rotation use, occasional runs, but don't expect it to last 12+ months of daily wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

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