Exhaust Mufflers and Resonators

AP Exhaust Products

AP Exhaust Products - 530722

$64.89

SKU: A01W 530722

In Stock
In Stock
Ships by Sep 7
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Flowmaster 70 Series Big Block II Muffler is a chambered muffler designed to soften and mellow aggressive powertrains. It features an extra-large resonance tuning chamber and Flowmaster's patented Delta Flow technology to reduce noise levels. This muffler is offered in aluminized steel with a 3-year warranty or stainless steel with a limited lifetime warranty.

The muffler is ideal for large pickups, SUVs, and RVs, producing a mild, soft, and mellow tone with minimal drone. It has an extra-long case design and is available in various inlet/outlet sizes and configurations to fit a wide range of applications. Installation typically involves slip-on style ends that can be clamped or welded, though cutting or splicing may be necessary for some exhaust systems.
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AP Exhaust Products - 530722

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

BrandAP Exhaust Products
Part NumberA01W 530722

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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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