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 7 - Aug 12

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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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Boise, US
★★★★★ 4
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Good price dog likes it not enough in bag and can choke if dog chews it down
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Reviewed in the United States on February 28, 2026
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Kathy Rogers
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★★★★★ 5
Perfect for my medium dog
My dog loves these alternatives to pigs ears. Easier for her soft mouth.
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Reviewed in the United States on February 4, 2026
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Karen A
Draper, US
★★★★★ 1
bag came ripped
bag came ripped so the chewy pig ears were not chewy they were hard, I didnt even give them to my dog. The worst part is they are not returnable or refundable - what a waste of money So not acceptable.
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Reviewed in the United States on February 14, 2025
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Rebecca
Boise, US
★★★★★ 5
Definitely buying again
My dog loves these. They smell like pork chops. The size is perfect for my dog. The price was amazing. The color looks just like the online one. Best for Digestion
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Reviewed in the United States on October 2, 2025
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TailoredBohemian
New York, US
★★★★★ 5
Awesome quality balls -- my dog loves them!
Color: F) 3-Pack (2.5" Balls)
Love this 3 ball set and variety and quality. These are the 2.5" size, similar to a tennis ball size give or take. The fun citron yellow one is the thickest + heaviest, very bouncy, and tough. The blue is still tough but not as thick or bouncy, a bit more flexible. And the clearish one is the lightest/flexible and is glow in the dark [although we haven't tried that part yet]. I have a 7month old 40lb girl who is becoming like a power chewer on some things -- but hasn't done that with these. She can play, mouth them, chew them, not even one knick or anything. Yes! The citron and blue one we leave out all the time in her little toy box. They have holes in the middle and have used them to hold thinner bully sticks and other treats. The blue one is fun to put smaller treats inside that she can work out like a puzzle. Obviously they are fun for fetch! We leave the other up and only get out when we can play with her because label said it is not a chew toy so we didn't want to take chances. Overall super fun and cool and good quality, human and dog approved LoL. ***We ordered the 2 set of 4" balls, blue and purple [they are same consistency of the blue ball] and love these too! Very fun and good at using with treats the sticks too, plus these don't get lost under sofas and furniture like the smaller ones, a big plus.
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Reviewed in the United States on November 28, 2025

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