Exhaust› Mufflers and Resonators

Flowmaster

40 Series Chambered Muffler 40 Series 3.00 Offset In 3.00 Offset Out Aggressive Sound Flowmaster

$280.96

SKU: F00L 43043

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Flowmaster Inc. 40 Series Muffler (Part # 43043) is designed to deliver an aggressive exterior and interior tone, providing the classic Flowmaster sound. It is constructed from durable 16-gauge aluminized steel and features full MIG welding for maximum longevity. This muffler has a 3-inch offset inlet and a 3-inch offset outlet, with a case length of 13 inches. It is a non-reversible design.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFlowmaster
Part NumberF00L 43043

Videos

Flowmaster Exhaust On Chevy 5.3 Install

Flowmaster Exhaust On Chevy 5.3 Install
Flowmaster 40 Series Exhaust Install - 98 Chevy Silverado 1500

Flowmaster 40 Series Exhaust Install - 98 Chevy Silverado 1500
Flowmaster Super 40 Series Muffler Install

Flowmaster Super 40 Series Muffler Install
The ONLY Flowmaster Video you NEED to watch

The ONLY Flowmaster Video you NEED to watch
Flowmaster Super 40 Series Muffler Sound Test

Flowmaster Super 40 Series Muffler Sound Test
How to Select the Right Flowmaster Muffler - Series Differences Explained

How to Select the Right Flowmaster Muffler - Series Differences Explained
I Installed A Flowmaster 40 Series Muffler On My Ford F150! | Sounds AMAZING! | NO WELDING NEEDED! |

I Installed A Flowmaster 40 Series Muffler On My Ford F150! | Sounds AMAZING! | NO WELDING NEEDED! |

Buy with Confidence

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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