Exhaust Muffler for 1976-1978 Chevrolet Blazer - Full Size & More - Walker 21784

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$77.99

MPN: 21784

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Walker Exhaust Exhaust Muffler P/N:21784

$77.99

Description

Tame exhaust drone and keep your classic Chevy sounding factory-correct with the Walker Quiet-Flow Direct Fit Exhaust Muffler 21784. This WALKER EXHAUST muffler drops in as a direct-fit, bolt-on replacement for the 1965-1969 Chevrolet Bel Air, 1965-1969 Chevrolet Biscayne, 1973-1974 and 1976-1978 Chevrolet Blazer - Full Size, and 1966-1969 Chevrolet Caprice, and is built with a 2.5" inlet (ID) and 2" outlet (OD). See the Buyer's Guide tab for engine-level fitment.

Easy to install: bolt-on design with factory-style pipe routings, brackets and hangers, so no specialized fabrication or welding is required.
Resists corrosion: an internal drainage system helps reduce moisture collection inside the muffler.
Built to last: internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion, while spun-locked heads and OE-style spot welds add stability and support longer service life.
Premium acoustic control: OE-style louvered tubes lower noise levels and OE-style domed heads help reduce radiated noise for factory-style sound compared to straight perforated tubes.

Acoustic and flow tested for quality OE-style sound, it is backed by Walker's limited lifetime warranty and the exclusive 90-Day Safe and Sound Guarantee.

Interchange: 2538

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

2538

Frequently Asked Questions

What vehicles does the Walker 21784 muffler fit?

It's a direct-fit for the 1965-1969 Chevrolet Bel Air and Biscayne, the 1966-1969 Chevrolet Caprice, and the 1973-1974 and 1976-1978 Chevrolet Blazer - Full Size. Check the Buyer's Guide tab for your exact application.

What are the inlet and outlet sizes?

This muffler has a 2.5" inlet (ID) and a 2" outlet (OD), as specified by Walker.

Does installing this WALKER EXHAUST muffler require welding?

No. It's a bolt-on, direct-fit replacement with factory-style hangers, brackets and pipe routings, so it installs without specialized fabrication or welding.

How does the Quiet-Flow design control noise?

OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise, delivering factory-style sound compared to straight perforated tubes.

What warranty comes with this muffler?

It's covered by Walker's limited lifetime warranty and the exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.