Exhaust› Exhaust Pipes, Systems and Components

IE Engineering

304 Stainless Steel Adapter Pipe Kit

$219.99

SKU: IEEXCQ3

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It allows for the adaptation of an IE Downpipe to a stock catback or an IE Catback to a stock downpipe. This kit is constructed from 304 stainless steel using an investment casting method for durability and optimal fit.
Show original supplier description
This kit serves as a crucial adapter, allowing you to connect an IE Downpipe to a stock catback exhaust, or conversely, an IE Catback exhaust to a stock downpipe. This advanced manufacturing technique, facilitated by specialized 3D scanning and software, enables the creation of complex shapes that maximize exhaust flow and ensure a perfect fit within tight spaces, which traditional piping methods cannot replicate. This ensures the part is both durable and performance-oriented, without introducing power restrictions. This Y-Pipe Adapter Kit is specifically designed for the Audi RS3 (8V) 2.5T from 2017 onwards and the Audi TTRS (8S) 2.5T from 2018 onwards. It facilitates either an IE Downpipe to stock catback configuration or an IE Catback to stock downpipe configuration for these models. It is important to note that this product is not currently legal for road use in California due to emissions regulations and cannot be sold or shipped to California addresses. Additionally, the product comes with a California Prop 65 warning regarding potential exposure to chemicals known to cause cancer, birth defects, or other reproductive harm.

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

BrandIE Engineering
Part NumberIEEXCQ3
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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