SKU: 605343904

2003-2024 Toyota 4Runner Cat-Back Exhaust Flowmaster Stainless Steel

Sale price$187.17 Regular price$207.97
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

2003-2024 Toyota 4Runner Cat-Back Exhaust Flowmaster Stainless SteelOverview: Flowmaster introduces our Flow FX Extreme stainless steel cat back exhaust system for the 2003 2024 Toyota 4Runner with the 4. 0 liter engine. This system uses a Flow FX series muffler for an aggressive sound level and increased performance. 3. 00 inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. The system has a turndown style, dump exit right after the muffler to eliminate the over axle tailpipe.

Overview:

Flowmaster introduces our Flow FX Extreme stainless steel cat-back exhaust system for the 2003-2024 Toyota 4Runner with the 4.0-liter engine. This system uses a Flow FX series muffler for an aggressive sound level and increased performance. 3.00-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. The system has a turndown style, dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps improve ground clearance and departure angle when you are driving in more extreme off-road situations. This system produced max dyno gains of 4 hp and 5 lb-ft at the rear wheels. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • Flow FX Series performance muffler offers an aggressive to moderate sound level and increased performance
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
  • Max dyno gains of 5 hp and 6 lb-ft of torque at the rear wheels
  • 3.00-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • Dump style exit allows for better ground clearance when in extreme off-road conditions
  • Uses factory hanger locations for easy installation
  • Lifetime Limited Warranty
  • Specs:

  • Brand: Flowmaster
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Emission Code: 5
  • Exhaust Series: Flow FX
  • Exhaust Tip Color: Silver
  • Exhaust Tip Connection: Welded
  • Exhaust Tip Cut: Straight
  • Exhaust Tip Edge: Rolled Edge
  • Exhaust Tip Finish: Natural
  • Exhaust Tip Material: 409 Stainless Steel
  • Exhaust Tip Quantity: 1
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Single Wall
  • Exit Style: Single Out Dump
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Inlet Type: Flanged
  • Main Piping Diameter: 3
  • Mount Type: Uses Factory Hangers
  • Mounting Bracket Included: No
  • Muffler Body Diameter: 6
  • Muffler Body Length: 14
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Round
  • Muffler Color: Silver
  • Muffler Finish: Natural
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 3
  • Muffler Inlet Location: Center
  • Muffler Inlet Outside Diameter: 3.13
  • Muffler Outlet Diameter: 3
  • Muffler Outlet Quantity: 1
  • Muffler Overall Length: 40
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: Flow FX
  • Muffler Type: Absorption
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 3
  • Tail Pipe Quantity: Single
  • Tail Pipe Tapered Outlet: No
  • Type: Cat-Back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 717972
  • Applications:

    • 2003-2024 Toyota 4Runner 241 CID

    Emissions:

    • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 605343904

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    4.9 ★★★★★
    Based on 5 reviews
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    Product Reviews
    C
    Verified Purchase
    Colby D. May
    Lowell, US
    ★★★★★ 4
    Almost perfect, absolutely fit for purpose, and a great value
    Size: Standard--black
    These are really, really close to being five stars, but because of my OCD tendencies when it comes to things being true and level, I can only go four. The way these mounts are made, speakers rest inside and on the inner surface of the L-shaped adjustable side brackets, and not on the large metal plate between them. Leveling on the fore-and-aft plane can easily be handled via the adjustment nut on the bottom of the bracket. But there is no provision for side-to-side leveling, so if the manufacturing of the side brackets is not within tolerance, you'll wind up with a speaker that's ever-so-slightly wonky...which is the case with ONE of my mounts. The bubble is still between the lines, but it's kissing the left line. Most would not care about this, and I'm not too bummed about it, but I am able to see that much out-of-true with the naked eye. It's not enough to pursue any kind of remediation, because the value on these really is awfully good. They are solidly built, easy to install, and easy to adjust. The manufacturer is apparently improving the product as they go based on feedback, as some issues that have vexed other owners have not been a problem for me, such as the wall plates being or coming loose (the design now ensures they stay put once pushed back to the wall), or the adjustment nut and bolt rotating freely and not staying tight (the ones on mine are great and function as intended). For the price, these are really hard to beat, and I have a feeling all the mounts like this with the different oddly-named brands are made in the same factory. That being the case, get the cheapest ones, and the day I bought mine, these were those.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 15, 2025
    S
    Verified Purchase
    Seth Johnson
    New York, US
    ★★★★★ 5
    Solid and easy to install
    Size: Standard--black
    These are nice, solid wall mounts. They assembled quickly and easily, and they can hold larger bookshelf speakers like my Cambridge Soundworks M60s. Adjusting the plate to match speaker size is pretty easy, and they seem to grip the speaker tight enough that they won't fall off. The tilt option is very useful and a good feature when speakers are mounted high and need to tilt down toward the listener. Just remember to tighten the bolt on the bottom once you've positioned it where you want it. I would definitely recommend these to anyone looking for solid, well priced speaker mounts.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 30, 2025
    M
    Verified Purchase
    Mark K
    Lake Worth, US
    ★★★★★ 5
    Well made. Easy install.
    Size: Standard--black, Size: Standard--black
    These were easy to install. All the hardware was included. They look good. Seems well made.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 4, 2026
    O
    Verified Purchase
    Optionado
    Port Orchard, US
    ★★★★★ 5
    Sturdy solution
    Size: Standard--black
    I needed a way to mount rear speakers and this was the solution. They're sturdy and adjustable to fit reasonably sized speakers. They also pivot up and down and swivel so really perfect.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 18, 2026
    E
    Verified Purchase
    EternianUber
    Lowell, US
    ★★★★★ 5
    Nice unit
    Set name: 5.1 Receiver
    I'm really happy with this receiver even though I don't have any speakers hooked up to it. Not using it for a speaker setup might sound like a waste of a product to some people but honestly I'm finding plenty of value in it with it's other features. The main reason I looked into getting a receiver was so I could have multiple hdmi devices hooked up to my monitor. I looked into hdmi hubs but there are a couple reasons why I've chosen a receiver instead. 1. Reliability and ease of use. Ok, so like I said I use a monitor in my room, not a tv. Monitors don't have remotes so anytime I want to change the volume or hdmi input I have to do it manually. It's a 32 inch monitor about 3 feet to the side of my bed and it's a nice arms stretch to do so. Not a big deal and while there are plenty of hdmi hubs that offer remote changing or automatic changing I worry about the reliability of those devices. There are plenty of reviews that state their hubs stop working after some months or the automatic hdmi switching starts changing inputs randomly or getting black screens and such. I just didn't want to hassle with things like that. 2. Bluetooth connectivity. This was another feature that I was looking into. Again, there are separate devices that offer this but just like hdmi hubs you will find plenty of reliability concerns. On top of that there's audio lag and previously when I bought a bluetooth transmitter I had to return it for that reason. Nice thing about this receiver is there is an adjustment for the audio to increase or decrease the audio timing but luckily it isn't an issue and the audio seems to be timed perfectly with my bluetooth headphones. It pairs up quickly too. I haven't tried the 4k upscaling with this receiver because I use a 1440p monitor but it's nice to know that it's there. Maybe in the future I will find a use for it. There's also some neat audio presets for things like movies, music and gaming. It's actually a pretty extensive list. I suppose I should also mention that each hdmi input can be named to your liking for a nice customization feel so when you flip through them you know exactly what's connected to that input. You can even use the hdmi ports when the unit is in standby mode but you won't be able to use the bluetooth connectivity. In the end I think this was a good purchase. It's priced reasonably and I'm getting good use out of it. Sound quality is great and the customizable features are a definite plus. More expensive than getting an hdmi hub and bluetooth transmitter but I think the reliability and extra features make up for this.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 23, 2019

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