SKU: 1381433607

IE ProCore Downpipe - Audi / B9 / S4 / S5

Sale price$1329.75 Regular price$1477.50
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USA
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

IE ProCore Downpipe - Audi / B9 / S4 / S5LEADING FEATURES IE ProCore Catalyst No check engine light High flow design Supports hybrid & large turbo power Increases sound Full and enriched exhaust note Bolt on direct fit No cutting, no welding, no hassle High Quality Stainless steel, TIG welded, & investment casting THE PROCORE ADVANTAGEIE's in house engineered ProCore Catalyst features our specialized tri core design with a specialty coating, enabling it to pass vehicle readiness monitors

LEADING FEATURES

  • IE ProCore Catalyst -No check engine light
  • High-flow design -Supports hybrid & large turbo power
  • Increases sound -Full and enriched exhaust note
  • Bolt-on direct fit -No cutting, no welding, no hassle
  • High Quality -Stainless steel, TIG welded, & investment casting

THE PROCORE ADVANTAGE
IE's in-house engineered ProCore Catalyst features our specialized tri-core design with a specialty 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 operation and 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.

HIGH-FLOW DESIGN
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 ENGINEERING
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.

CUTTING-EDGE MANUFACTURING
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.

HYBRID TURBO READY
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.

Our IE B9 3.0T intake systems, turbo inlet pipe, and downpipe are hybrid optimized, making the installation of popular turbo upgrades an easy bolt-in process.

DYNO TESTING
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 and 41FT-LBS to the wheels!

EASY INSTALL
Install your new downpipe kit without welding, cutting, permanent modifications, or installation hassles. The process is straightforward with the correct tools. If desired, the factory heatshield and engine cover are reinstalled with a perfect fit for a truly stealth look.

Install time around 2-3 hours

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: 1381433607

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4.2 ★★★★★
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Maddisun wiles
New York, US
★★★★★ 1
Disgusted!
Size: Small, Color: Black
I’m disgusted! I ordered this for my boyfriend to wear to prom. I ordered him a small and the jacket and the vest were not smalls, they look like they were a large. All three pieces had dog or cat hair on them and the jacket had dirt stains on the inside. They were all used! And some of the stitching was coming out! I’m so glad I received it the same day I bought it, because if received it closer to prom I would have been so screwed!!! Do not buy this or buy from this brand! Terrible product!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
S
Verified Purchase
spartan
Whiting, US
★★★★★ 5
Dress to Impress: Sharp, Tailored Fit, Quality Material, and Sizing Tips
Size: X-Small, Color: Navy Blue, Size: X-Small, Color: Navy Blue
This review is for the LUPURTY Men's Suits Slim Fit, 3 Piece Suits for Men, 2 Buttons Solid Jacket Vest Pants, Tuxedo Set (XS navy blue and black sets). I bought the XS knowing my son's measurements were actually below the size guide for that size, but I'm glad I did because it still worked out. The suit was a bit big—especially in the pants, which were quite long, and slightly roomy in the shoulders and arms—but it still looked sharp and well put-together. The overall fit has a clean, tailored appearance despite the extra room. The material feels high-quality and the color is true to what’s shown online. I do wish the black suit came with a black or gray tie instead of blue, which didn’t quite match. The suit in the photos is the navy blue set that my son wore to his 8th grade graduation, which matched their school colors perfectly. I also included my son’s measurements to help others with sizing: Weight 114 lbs Height 5'3" Chest 30.5" Waist 29" Hip 35" Sleeve length 21.5" Shoulder 17" Inseam 29" Back length 18.5"
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 9, 2025
J
Verified Purchase
Jyo
Charlottesville, US
★★★★★ 5
Perfect fit and nice material
Color: Blue, Size: Small
This is a really nice addition to my teen son's wardrobe because the cloth is great quality and it fits him perfectly. It looks good on him and holds up well, making it a very solid purchase for a teenager. We initially ordered the wrong size, but the exchange process was quick and prompt.
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Reviewed in the United States on June 3, 2026
C
Verified Purchase
carrie
Los Angeles, US
★★★★★ 5
Great purchase. Waist is a little big but it will work well.
Color: Light Brown, Size: Small, Color: Light Brown, Size: Small
Super fast one day shipping. The quality is good and the fit is good. He is 5 foot 11 and his waist is 30 inches. He has long arms and the jacket lands perfectly at his wrist. The pants were a little large in the waist and the length is a little long.
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Reviewed in the United States on May 24, 2026
K
Verified Purchase
K Rife
Whiting, US
★★★★★ 5
Fantastic suit, especially for the $$$!
Color: Black, Size: XX-Large
Bought this for my husband and my son to attend our daughter’s wedding as they had nothing to wear at all. I was kind of scared when I ordered 2 sets of these suits, I had read so many reviews that I was totally overwhelmed and didn’t know if I should get it or not, my head was literally spinning as the reviews were all over the place. So, we had went to Men’s Warehouse earlier in the day, so I had their suit jacket measurements, so I used those numbers, but tbh, I just went with the size that they usually get when getting clothes in general and their suits fit great! I was so relieved!! They looked so handsome oh my goodness! These suits fit the way that they are advertised to fit, which is “slim fit” which means they fit like a glove! Slim fit does not mean “too small” it means that these suits are not baggy or oversized, they fit the body just right! They were not wrinkly when taken out of the package, they were very nice quality, the pants were made with a nice material, they did not feel cheap at all. Everything was great!! I was so impressed with everything! I could not believe that I got both my husband and my son a 3 piece suit for less than $100 each! Both of them said that their suits were extremely comfortable and they had no problem wearing them all night. You could tell by their faces that they felt confident in them, and they knew they looked good. Very happy customer!!
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Reviewed in the United States on April 3, 2026

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