Exhaust› Exhaust Pipes, Systems and Components

Armytrix

Valvetronic Cat-Back Exhaust System 3-Inch

$2,740.00

SKU: AUVS4-QS11B

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 ARMYTRIX AUVS4-QS11B is a stainless steel valvetronic cat-back exhaust system. It features a 3-inch main pipe diameter and quad 3.5-inch exhaust tips.
Show original supplier description
The ARMYTRIX AUVS4-QS11B is a premium stainless steel valvetronic cat-back exhaust system engineered for the Audi S3 (8V) Sedan (2013-2020) 2.0 Turbo models. It boasts a 3-inch main pipe diameter and distinctive quad 3.5-inch exhaust tips, available in various finishes like blue coated, matte black, chrome silver, carbon, and gold. This system integrates ARMYTRIX's advanced valve control technology, allowing you to switch between different sound modes (Smart, Neighbor, Beast) via a wireless remote or smartphone application. The Plug-and-Play OBDII dongle module simplifies installation by reducing complexity and wiring work, potentially cutting installation time by 30%. It also features a fault code clearing mechanism for catalytic converter and OPF-related issues, minimizing the risk of a check engine light.

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

BrandArmytrix
Part NumberAUVS4-QS11B
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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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