Exhaust› Exhaust Pipes, Systems and Components

CT

B9 Audi A4 2.0T Cat-Back Exhaust System

$1,643.99

SKU: CTS-EXH-CB-0019

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The CTS Turbo B9 Audi A4 2.0T cat-back exhaust system is a performance upgrade designed for enthusiasts. This system is hand tig welded using T304 stainless steel, with CNC mandrel-bent piping. It features a 3″ non-resonated downpipe and dual 2.5″ exhaust pipes, topped with double-wall 4.0″ tips.
Show original supplier description
The CTS Turbo B9 Audi A4 2.0T cat-back exhaust system is crafted for performance enthusiasts, built from the ground up by CTS Turbo. Constructed from premium T304 stainless steel, this system features hand TIG welding and CNC mandrel-bent piping for optimal flow and durability. This cat-back exhaust system boasts a 3″ diameter, non-resonated downpipe that transitions to dual 2.5″ exhaust pipes. It includes double-wall 4.0″ tips and drone-free resonators to provide an aggressive sound under hard acceleration while maintaining a subtle tone during cruising. The design is intended to replace the restrictive factory exhaust, offering a 10-12hp gain. Key product details include water jet cut flanges and the assurance that this system will not cause a Check Engine Light (CEL). It is compatible with the factory catalytic converter as well as aftermarket test-pipes and high-flow catalytic converters. Fitment is specified for the 2017-2024 Audi A4 2.0T models, including facelift versions that may have fake exhaust tips integrated into the bumper (these tips will not be used). It also fits the 2017-2019 Audi AllRoad models.

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

BrandCT
Part NumberCTS-EXH-CB-0019
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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