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Flowmaster 40 Series Mufflers 430402

Muffler, American Thunder 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Aluminized Steel, Each

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Brand: Flowmaster

Manufacturer's Part Number: 430402

Part Type: Mufflers

Product Line: Flowmaster 40 Series Mufflers

Summit Racing Part Number: FLO-430402

UPC: 700042010448

Case Shape: Oval

Inlet Diameter (in): 3.000 in.

Inlet Quantity: One

Inlet Location: Center

Outlet Diameter (in): 2.500 in.

Outlet Quantity: Two

Outlet Location: Offset

Internal Construction: Chambered

Muffler Material: Steel

Muffler Finish: Aluminized

Case Length (in): 13.000 in.

Overall Length (in): 19.000 in.

Thickness (in): 4.000 in.

Width (in): 9.750 in.

Outlet Style: Standard, without tip

Quantity: Sold individually.

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Looking for the most aggressive sound in the Flowmaster muffler line? Then take a look at these 40 series Flowmaster mufflers. Designed for use on street and strip vehicles, they take the sound waves produced in the exhaust, and cancel them against angled baffles built into the muffler case. This improves both horsepower and fuel economy. Best of all, these Flowmaster mufflers allow you to hear that cool Flowmaster tone inside of the vehicle, as well as outside of it. So, if you want more power and less noise, then you've gotta get these Flowmaster mufflers.

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Most Helpful Reviews Review this Product

6 Customer Reviews for Flowmaster 430402 - Flowmaster 40 Series Mufflers

Average Customer Review

5 Star

(5)

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3 Star

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1 Star

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Flow master series 40

Just installed a few days ago. So far, sounds good. Noticeable increase in horsepower. Flows air very well.

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Reviewer: JOE from CO

Date: October 27, 2014

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FLOW MASTER MUFFLER 40 series

Summit RacingSummit Racing Verified Purchase

Outstanding, I love the sound and the quality of this product!

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Reviewer: JOHN from OK

Date: September 08, 2014

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Flow Master

Summit RacingSummit Racing Verified Purchase

Excellent sound! Replaced my Magna Flow with this muffler. Has a deep rumble.

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Reviewer: DANIEL from MO

Date: July 23, 2014

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Flowmaster 40 Series SI/DO Muffler

Purchased this muffler for my '98 Dodge Ram 1500 and I love it! Sounds mean outside of the vehicle and the sound is noticeable inside of the cab, however it does not drone too badly. Highly recommend this product to anyone who likes the vintage muscle car tone!

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Reviewer: JOHN from GA

Date: July 07, 2014

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flowmaster 40 series muffler 430402

Summit RacingSummit Racing Verified Purchase

this worked great on my 2013 chevy 1500 pick up I did this with 3in tips on it and sounds great.

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Reviewer: CHRIS from Canada

Date: March 23, 2014

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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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