Exhaust› Exhaust Pipes, Systems and Components

Nameless Performance

Axleback Exhaust w/ 5-Inch Muffler & Helmholtz Resonator

$961.00

SKU: SUAB24IMW25-QUAD

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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 Nameless Performance Axleback Exhaust is a quad-exit exhaust system designed for the 2024+ Subaru Impreza RS with the FB25 engine. It features a dual-chamber design that combines a 5-inch muffler with a frequency-tuned Helmholtz resonator to cancel drone frequencies during cruising and low-RPM driving. The system includes polished 3-inch staggered double-wall quad stainless steel exhaust tips and is constructed from CNC mandrel-bent 2.25-inch T304 stainless steel tubing.
Show original supplier description
Designed for the 2024+ Subaru Impreza RS with the FB25 engine, this axleback exhaust features a dual-chamber configuration that pairs a 5-inch zero-restriction muffler with a frequency-tuned Helmholtz resonator. This engineering approach effectively cancels out drone frequencies during cruising and high-load, low-RPM driving to ensure a refined cabin experience. The system is constructed from CNC mandrel-bent 2.25-inch T304 stainless steel tubing, featuring polished 3-inch staggered double-wall quad exhaust tips that integrate into factory bumper cutouts. Every unit is hand TIG-welded in Woodland, Washington, and includes a full hardware kit and gaskets for a precise, bolt-on installation to OEM or OEM-fitment midpipes. Please note that this product is not compatible with older Impreza models or 2.0L engines; a dedicated 2.0L version is available separately. Ensure your vehicle configuration matches the specified engine type before purchase.
Vehicle Symptoms
  • Exhaust note is too quiet or stock-sounding
  • Drone noise during highway cruising
  • Want a more aggressive exhaust sound
  • Unsatisfactory exhaust tip appearance
  • Rear of car looks unfinished
Relevant Conversations
  • 2024 Subaru Impreza RS exhaust upgrade sound
  • Nameless Performance axleback review Impreza RS
  • How to install axleback exhaust on FB25 Impreza
  • Quad exit exhaust for 2024 Impreza RS vs dual
  • Exhaust drone fix for Subaru Impreza
  • Subaru Impreza RS aftermarket exhaust sound clip
  • Best axleback exhaust for 2024 Impreza RS
  • Nameless Performance vs OEM exhaust Impreza RS
  • Impreza RS exhaust system upgrade options
  • Does axleback exhaust improve sound on Impreza RS

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

BrandNameless Performance
Part NumberSUAB24IMW25-QUAD
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.

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