Exhaust› Exhaust Pipes, Systems and Components

Integrated Engineering

Resonator Delete Exhaust Midpipe

$804.99

SKU: IEEXCK4

Special Order
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Integrated Engineering IEEXCK4 is an exhaust midpipe upgrade designed to enhance engine sound and improve exhaust flow. It features a high-flow, straight-pipe design that deletes the factory resonators.

Constructed from TIG-welded 304 stainless steel, this midpipe offers superior corrosion resistance and lighter weight compared to the stock system. It includes reliable, OE-quality flex sections and leak-free exhaust clamps for durability. The kit comes complete with all necessary hardware for a straightforward, bolt-in installation.
Show original supplier description
The Integrated Engineering IEEXCK4 midpipe exhaust upgrade is engineered to transform the sound profile of your Audi B9/B9.5 S4 or S5 3.0T. By replacing the factory section that includes resonators with a high-flow, straight-pipe design, this upgrade delivers a more aggressive exhaust note, enhanced burbles, and sharper downshift sounds, making the car feel more alive. Constructed from premium 304 stainless steel tubing, the IEEXCK4 offers significant advantages in weight reduction and corrosion resistance, ensuring long-lasting performance. Reinforced mounting brackets are also included for extended service life. The kit includes all necessary hardware and clamps, with an estimated installation time of around 2 hours using standard hand tools. The midpipes feature a 63.5mm OD and 60.25mm ID. This midpipe upgrade is specifically designed for the Audi B9/B9.5 S4 and S5 models equipped with the 3.0T turbocharged engine, from model years 2017 through 2024. While the product aims for precise fitment using advanced 3D scanning and rapid prototyping, some users and installers have noted that the placement of the larger straight piping may not align as perfectly as factory components, though performance remains unaffected.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandIntegrated Engineering
Part NumberIEEXCK4
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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