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Exhaust Mufflers and Resonators

Flowmaster

40 Series Delta Flow Chambered Muffler 40 Delta Flow 2.25 Center In 2.25 Dual Out Aggressive Sound Flowmaster

$172.95 $152.95 Save $20.00

SKU: F00L 9424422

In Stock
In Stock
Ships by Sep 14
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Flowmaster 40 Series Delta Flow is a universal chambered muffler designed to provide an aggressive sound.

Constructed from aluminized steel, this muffler features an oval body measuring 13 inches long, 9.75 inches wide, and 4 inches high. It has a 2.25-inch inlet and dual 2.25-inch outlets, with an overall length of 19 inches.
Show original supplier description

Part #: 9424422

This two chamber design incorporates Flowmaster's Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound.Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Race proven Delta Flow technologyNo internal packing to blowoutExcellent Street/Strip and Off Road applicationDurable fully welded 16 gauge aluminized steel

Features:

  • Durable Fully Welded 16ga Aluminized Steel
  • Race proven Delta Flow technology
  • Race Proven Patented Delta Flow (R) Technology
  • No internal packing to blowout
  • Excellent Street/Strip And Off Road Application
  • Excellent Street/Strip and Off Road application
  • No Internal Packing To Blowout
  • Durable fully welded 16 gauge aluminized steel

40 Series (TM) Delta Flow Muffler | 2.25 in. Offset Inlet/Dual Outlet | Case Dimensions 4 in. x 9.75 in. x 13 in. | 19 in. Overall Length | Aluminized Steel

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

BrandFlowmaster
Part NumberF00L 9424422

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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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