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 10 - Aug 15

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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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suepal
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Phoenix, US
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Great product!
Love the fragrance, cleans great, not harsh on my hands.
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Reviewed in the United States on May 7, 2026
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Mrs. Meyer’s Clean Day Liquid Dish Soap in Lemon is a wonderful everyday dish soap. The lemon scent is fresh and uplifting without being overwhelming, and it cuts through grease really well. It lathers nicely and rinses off easily, leaving dishes clean and streak‑free. I also appreciate that it uses plant‑derived ingredients and smells so much better than typical dish soaps. Great choice for a kitchen staple!
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LMcLean
Boise, US
★★★★★ 5
Works well and smells lovely
Who doesn't love Mrs. Meyer's products?!! This dish detergent cleans well and smells beautiful. The best part is that it doesn't contain harmful chemicals and is so much safer than other detergents. I love it so much that I bought the 3 pack so I wouldn't run out!
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Kim P
Chelsea, US
★★★★★ 5
Nice smell
Trusted brand name and quality soap. I like the scent for my kitchen
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