Exhaust› Mufflers and Resonators

AP Exhaust

2.25-Inch Inlet/Outlet Muffler

$64.72

SKU: 700473-CI

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 AP Exhaust 700473 muffler is an OE replacement exhaust component designed for reliable flow and sound control in select GM SUVs. Engineered with aluminized steel, this baffled muffler features an oval shape and a right center inlet with a left center outlet, both measuring 2.25 inches.
Show original supplier description
The AP Exhaust 700473 muffler is an OE direct replacement designed for specific Buick, Chevrolet, GMC, and Saturn SUVs, including the Acadia, Enclave, Outlook, and Traverse models. Constructed from durable aluminized steel, this baffled muffler is built to resist corrosion and provide a long service life. It features an oval shape, a right center inlet, and a left center outlet, both with 2.25-inch inside diameters, ensuring it meets original equipment sound level standards for reliable exhaust flow and noise reduction. This muffler is intended as a bolt-on fit, requiring no modifications for installation. Key specifications include a body material of aluminized steel, a baffled muffler type, and an overall length of 23 inches, with body dimensions of 19 inches in length, 11 inches in width, and 5.5 inches in height. The grade type is listed as regular, and it does not come with a heat shield attached. Installation notes recommend verifying the inlet and outlet pipe diameters match the existing exhaust system and ensuring the correct orientation of the right center inlet and left center outlet. It is also advised to inspect exhaust hangers and clamps for wear before installation. Professional installation is recommended to maintain exhaust system integrity and performance. While specific warranty details are not provided, AP Exhaust products generally meet industry standards for durability.

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
Part Number700473-CI
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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