Flowmaster 817633 Direct Fit Muffler - 409S - Outlaw Kit - Aggressive Sound price history and forecast - Flowmaster 817633
Flowmaster 817633 Direct Fit Muffler - 409S - Outlaw Kit - Aggressive Sound

Flowmaster 817633 Direct Fit Muffler - 409S - Outlaw Kit - Aggressive Sound

Brand:
Flowmaster
Model Number:
817633
UPC:
700042032082
EAN:
0700042032082
Walmart SKU:
49347100
Key Takeaway

Market direction turned upward today with current $430.95 representing 2.1% over standard pricing.

Third-Party Seller Summary

Third-Party Seller Price History Summary
Price Type Price Date
Highest Price
$479.95
Lowest Price
$419.95
Most Recent Price
$479.95
Average Price
$460.52
First Tracked
Last Update

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$430.95
Lowest Price
$386.95
Most Recent Price
$430.95
Average Price
$421.17
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Flowmaster 817633 Direct Fit Muffler - 409S - Outlaw Kit - Aggressive Sound since 9/7/2025. The most recent price update was on Jun 28, 2026.

Price Range: Over the past 90 days, the price has ranged from $386.95 (lowest on 3/22/2026) to $430.95 (highest on 9/7/2025). The average price during this period is $421.17.

Current Trend: Walmart.com prices have ranged from $386.95 (Jun 3) to $430.95 (Jun 28) over the past 90 days. Current price is close to the 90-day average of $422.15.

Customer Insights: Rated 4.75/5 from 24 reviews.

Customer Reviews

24 reviews

Customer Reviews

4.8
Based on 24 reviews
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Showing 10 of 24 reviews

Great sound w/out sacrificing stock look!

coachmac66 June 28, 2017

Sound is great! Aggressive for s simple muffler swap. Relatively easy to install. Taking off stock muffler took a lot longer than getting the new one on. Some have complained about supplied clamps. If you take your time an don't rush they work perfectly. Some people just don't know how to work on their vehicles!

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Easy to install and Great Sound

HemiJake November 22, 2016

I bought this about a month ago for my 2016 Ram 1500 and it arrived on time and It was a fast easy swap to install. Sounds great, deep rumble but doesnt cackle like I thought it it which is a good thing. Lots of compliments!! Overall 10/10 flowmaster and jegs does it again!

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Great sound

CRCarch January 1, 2017

Purchased this as a gift for my son's new truck. Price is high for a muffler, but certainly much cheaper than a cat-back system. The RAM factory sport exhaust already looks good, so you really only need the muffler to get the missing sound. It can probably be installed by one person, but it definitely needed both of us to remove it and get the pipes realigned. Even with a new truck, penetrating spray is definitely your friend and should be sprayed liberally on the joints and on the rubber mounts as well. Fit was spot-on. Sound is excellent! Aggressive on acceleration but not something to wake the neighbors at idle. I was worried about droning in the cab, but the exhaust is no louder inside than the knobby tires on the highway. The only drone we experienced is at low speed, when the engine switches to ECO mode, which actually makes it sound like a diesel.

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Awesome

palko33 July 7, 2016

I went back and forth between this and the american thunder muffler for weeks. If you are doing this right now, I am telling you go with the outlaw. It isn't as loud as what I was expecting, and my fear was that it would be obnoxiously loud. Not the case at all. This will give your truck the perfect v8 sound, and when you get on it the thing roars. Sounds amzing, I love it.

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Muffler

Vdeg87 January 29, 2021

20 minute install. It sounds pretty good right after the install and initial drive. Be patient, this is not what this muffler will sound like. A couple heat cycles and it will get deeper and slightly louder. It sounds great after several weeks. Holds its tone under hard acceleration and does not fade out, It is aggressive. I have absolutely no drone. It does have a pretty good idle, mellow. Not obnoxious and overwhelming. It sounds like a typical flow master but overall I am very happy with it and I do recommend it. Fitment is quick, simple and good. Clamps will get you by but I recommend a good set of stepped band clamps.

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Just as expected

Eric76 October 18, 2015

what a difference from the stock muffler. I went back and forth American Thunder or the Outlaw. Glad I went with the Outlaw. Sounds great starting up and at an idle. Only growls when you step on the gas!! Doesn't rattle your brain on backroads nor the highway.

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Wow!

Juan4you August 12, 2016

Stock is a bit of a workout. New one is awesome! Good rumble throughout, low and high rpms. Sounds sick when down shifting, even my wife loves how it sounds. Installed in new 2016 Ram 5.7 Hemi

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Great add

CarolinaCruzin April 29, 2020

Love the sound it adds to my 2016 ram 1500. I should have brought the whole kit lol, but im happy with the results..

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Exactly as described!!

Michael S July 1, 2017

I'm a handy person, but I know nothing about working on cars. This muffler swap was extremely simple and it sounds absolutely fantastic on my Ram 1500. For the price, product quality, and the ease of installation, I would recommend this muffler to anyone looking for a little more rumble. [This review was collected as part of a promotion.]

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Good sound

Hondaryder November 12, 2019

I bought this about a month ago and I am very pleased with sound that it has given. Installing was fairly easy once i got my old muffler off. The only negative thing i can say about it is the black finish that was put on was peeling off as soon as I pulled it out of the box.

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Price History

Historical price data graph for Flowmaster 817633 Direct Fit Muffler - 409S - Outlaw Kit - Aggressive Sound

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

5 records

Walmart.com prices have ranged from $386.95 (Jun 3) to $430.95 (Jun 28) over the past 90 days. Current price is close to the 90-day average of $422.15.

Walmart.com price history for Flowmaster 817633 Direct Fit Muffler - 409S - Outlaw Kit - Aggressive Sound showing recent price changes over the past 90 days
Date Price Change % Change
$430.95 $+44.00 +11.4%
$386.95 $-44.00 -10.2%
$430.95 $+0.00 +0.0%
$430.95 $+0.00 +0.0%
$430.95
No third-party seller price history available for this product in the past 90 days.