SKU: 35344290930

Milltek 3" Performance Cat Back Exhaust

Sale price$830.25 Regular price$922.50
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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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.
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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]
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SKU: 35344290930

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Thrifty Shopper
Grantham, US
★★★★★ 5
Soft and comfy
Size: 12 Plus, Color: Microfiber - Colors May Vary
Comfortable fit. Have bought 4 times.
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Reviewed in the United States on May 30, 2026
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Lynda
Dallas, US
★★★★★ 4
No elastic around the thighs is kinda nice!
Size: 9, Color: Cotton Stretch - Colors May Vary
Great undies! They fit good and the fabric is comfortable. Only thing is that the legs tend to ride up/bunch up with pants on. I got them for post surgery comfort and thats what I got.
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Reviewed in the United States on May 14, 2026
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Cissy Horn
Chelsea, US
★★★★★ 5
Soooo comfortable
Size: 11 Plus, Color: Microfiber - Colors May Vary
Easy on/off because they really do stretch but return to shape. Fit is close to the body but not tight. Love that there is no elastic binding around my legs. Clothes glide over them because they are super smooth. Might never buy another style again.
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Reviewed in the United States on May 5, 2026
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BirdinKeys
Natrona Heights, US
★★★★★ 5
These were such a RELIEF during a shingles outbreak!
Size: 10 Plus, Color: Microfiber - Colors May Vary
I developed shingles on my abdomen and spent a few days commando because I was in so much pain and couldn’t stand anything against my skin but a nightgown. I had a drs appointment and was agonizing about showing up in a nightgown and bathrobe at the office. Then I I remembered my grandma used to wear boy leg high waisted undies so looked for something similar. These underpants by Fruit of the Loom were inexpensive and seemed to be similar to what I thought might work, so I ordered a four pack. They were very reasonably priced and when they arrived were of very good quality and well made. They were snugger fitting than I had hoped but were very very soft for tender areas on my abdomen. As it was, the snugness was comforting as they stay in place and act as a barrier between the sore rash areas and light clothing. I’ve never experienced the discomfort of nerve pain from wearing clothes andI’m so glad I happened on to these. I’m on the mend now but still wearing these as I’ve developed some neuralgia and these continue to keep me comfortable.
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Reviewed in the United States on April 29, 2024
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Bri
Los Angeles, US
★★★★★ 3
annoyed
Size: 8, Color: Cotton Stretch - Colors May Vary
i purchased the boxer brief. they fit perfectly. they are fairly soft and seemingly comfortable. not too thin or too thick, good for breathability. my biggest issues are the stitching being poorly done, making me worry the longevity will be lacking and the label stating “do not use fabric softener”. the reason i am annoyed though, is the images show pink and gray colors only, which is what i was hoping for, or at least colors only. i understand all multipacks are marked “colors may vary”, but for the love of god, stop putting white pairs in these packs. white, nudes/neutrals, and black should be sold separately in their own packs. i do not want ugly old timey white underwear. i wanted colors, any colors EXCEPT white! i would however, have LOVED an all black only pack!
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Reviewed in the United States on December 8, 2024

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