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IE Engineering

3.0T Catback Exhaust System with X-Pipe

$2,089.99 $1,880.99 Save $209.00

SKU: IEEXCG3

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

The IE Catback Exhaust System is a bolt-on exhaust designed for the Audi B8/B8.5 S4 3.0T (2009-2015). It features dual 2.5-inch T304L stainless steel tubing and an integrated X-pipe for improved exhaust flow and sound. The system includes 90mm quad slash-cut exhaust tips for a motorsport-inspired aesthetic.
Show original supplier description
The Integrated Engineering Catback Exhaust System is engineered to deliver an aggressive yet refined exhaust note for the Audi B8/B8.5 S4 3.0T (2009-2015). Constructed from corrosion-resistant, mandrel-bent T304L stainless steel, this system is built for longevity and features reinforced, bridged straight sections to prevent rattles. This catback exhaust system utilizes a dual 2.5-inch tubing design and an integrated X-pipe to optimize exhaust flow and enhance the overall sound. It includes all necessary hardware and OE-quality exhaust clamps for a leak-free setup, with an average installation time of 1-2 hours. The system is completed with quad 90mm slash-cut exhaust tips that offer an adjustable depth for a customizable motorsport look. Please note: This product is not currently legal for road use in California as it does not comply with California emissions laws. Additionally, it is subject to California's 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 NumberIEEXCG3
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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