SKU: 4239673717

Integrated Engineering ProCore Downpipe Kit Audi S4/S5 B9/B9.5 3.0T

Sale price$2537.97 Regular price$2819.97
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Integrated Engineering ProCore Downpipe Kit Audi S4/S5 B9/B9.5 3.0TThe IE ProCore Downpipe for your Audi B9 S4 or S5 delivers an improved exhaust note and increased flow. Our in house engineered 6" 400CPSI catalytic converter channels substantial flow to support upgraded engine tunes and larger turbochargers. The specialty tri core design and precious metal coatings align with ECU emissions requirements so that you can upgrade without the check engine light. IE's in house engineered ProCore Catalyst features our own

The IE ProCore Downpipe for your Audi B9 S4 or S5 delivers an improved exhaust note and increased flow. Our in-house engineered 6" 400CPSI catalytic converter channels substantial flow to support upgraded engine tunes and larger turbochargers. The specialty tri-core design and precious metal coatings align with ECU emissions requirements so that you can upgrade without the check engine light.

IE's in-house engineered ProCore Catalyst features our own tri-core design with a specialized coating, enabling it to pass vehicle readiness monitors without triggering a check engine light. An advanced molecular bonded wash process applies the precious metal coatings to ensure long-life reliability. Whether you're looking to improve the exhaust note from your 3.0T or building a track-destroying hybrid turbo setup, enjoy your exhaust without the annoying check engine light.

No check engine light does not equal reduced power. The 6" 400CPSI CAT maintains optimal flow to support substantial power gains up to large and hybrid turbochargers. Your IE ProCore downpipe will pass vehicle readiness monitors and allow total and complete power, torque, and spool potential from your hardware and tuning upgrade investments.

Advanced 3D scanning tools and cutting-edge software provide our engineers with a high-resolution digital model of Audi's unique 3.0T engine. This data is then used to maximize the downpipe size for flow and ensure perfect and factory-like fitment.

IE downpipes are manufactured with quality materials for lasting strength and performance. The T304L stainless steel investment cast body smoothly transitions exhaust flow from the massive 6" CAT to the dual 2.5" mandrel bent exhaust legs. All joints are hand TIG welded using precise fixtures and tooling for a seamless, leak-free fit.

The stock downpipe becomes a significant restriction when upgrading to a larger hybrid turbo. IE's cast downpipe is a direct fit to available upgraded turbochargers on the market and will unleash the complete horsepower, torque, and spool potential from your turbocharger investment.

Real-world power numbers are achieved using our in-house dyno cells to verify the efficiency of the downpipe design. Dyno testing performed in controlled conditions on a hybrid turbo equipped B9 S4 resulted in consistent and significant power gains of 45HP & 41FT-LBS to the wheels!

 

Vehicle Fitment:

  • 2017+ Audi S4 B9 3.0T
  • 2017+ Audi S5 F5 (B9) 3.0T
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: 4239673717

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4.4 ★★★★★
Based on 8 reviews
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Anne S
San Leandro, US
★★★★★ 5
Minimalist elegant, yet sturdy
Color: Gold-b, Color: Gold-b
I love the clean, minimalist design, it looks modern and elegant in my kitchen. The holder is solid and well-weighted, making it easy to tear paper towels without sliding. I’ve been using this for nearly a year, and it still looks and works like new. Great quality, good value for money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
S
Verified Purchase
Sandy H.
Battle Creek, US
★★★★★ 5
Great quality and extra gift
Color: Gold-b, Color: Gold-b
This thing was so easy to put together and really pretty. And they sent a little extra gift with the purchase, which was some very nice dish cloths. Thank you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
E
Verified Purchase
Ev Ting
New York, US
★★★★★ 5
Beautiful & Great Price!
Color: Gold-b, Color: Gold-b
I was looking at a $60 Williams & Sonoma “honeycomb collection” marble paper towel holder with gold bee accents, but decided to save a bunch of money and go with this one. Glad I did! It’s awesome!!! Easy to put together with the wrench that’s included, it’s packed well - great product for the price and they sent a free gift with it too. Received 3 super soft dish cloths along with the paper town holder. Unexpected surprise and happy with them too!! Just placed an oder for another one for the other bathroom sink. This will not be in a high use area so I’m not worried about the base getting beat up. I feel like it’s just the right weight. Not as heavy as real marble, but heavy enough to hold the towels securely. The gold is a pretty shade.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 16, 2025
K
Verified Purchase
kentra
Port Orchard, US
★★★★★ 5
perfect!!!
Color: Gold-b
great quality love look of it just what i was looking for looks great in space where i am using it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
K
Verified Purchase
Kat 😺
Bozeman, US
★★★★★ 5
Heavy marble base and solid rod holder.
Color: White-aa, Color: White-aa
After researching the many different marble base towel holders, which is what I wanted to match my marble decor, I finally settled on this which arrived today, packed very nicely in a Styrofoam tight box to protect the marble and came with it as you can see a gift of some very soft Microfiber dish cloths, which work very well at removing smudge marks on kitchen appliances. It took me 30 seconds to join the base to the rod. It came with a little tool to tighten the base however it really wasn’t necessary. I then covered the hole under the base with a piece of One-sided circular sticky, felt, which covered the hole very nicely. I have tried it, and it does do as it says, and the marble base is heavy enough where it holds the roll of paper towels so that with a couple of tugs, I can get one of the perforated sections out. Does take more than one tug as some people showed but two tugs or three light ones really doesn’t matter it gets the job done and in a far lower price than any of the others, in fact, some of the recommended others were 2 1/2 times more expensive and the reviews were not good at all. It pays to take the time to go through people’s reviews like mine and that’s why I believe in completing the reviews whenever I can time permitting. I’m giving this a five star and I think that you will too. I was lucky based on some of the other marble bases that were shown for this product that I got a significant amount of gray marbling matter because some of them had very little it’s just the way the marble runs and you take your chance, but I was lucky.
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Reviewed in the United States on October 2, 2025

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