SKU: 605343904

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

$187.17 $207.97
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Ships within 48 hours · Estimated delivery Nov 11 - Nov 16

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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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    4.2 ★★★★★
    Based on 8 reviews
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    Lynn
    Lexington, US
    ★★★★★ 5
    Dog loved it
    Size: One-Size-for-Most
    Great! My dog loves taking it outside at night so he can see where it goes easier. Super bouncy, he has had it for over a year now and still not destroyed. Perfect size for his mouth too and easy to clean.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 12, 2026
    A
    Verified Purchase
    Amazon Customer
    Massapequa, US
    ★★★★★ 5
    Most durable one yet and it lights up. Our dog loves it.
    Our dog destroys every other ball we've tried but this brand. I like the upgrade of being able to recharge it. She's a whole different dog when it's lit up. We're on her 4th one now and so far she hasn't torn any of them up. The ones with that were AA batteries always shorted out.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 19, 2026
    K
    Verified Purchase
    kgs
    Chelsea, US
    ★★★★★ 5
    Best disco ball!
    Had the old version of these balls that had batteries you actually replaced. This one is much better because you plug it in. My dog always loved this ball, because it's soft enough that she can take it in her mouth. And I love the color change. I got one for my daughter and her dog too, because I knew he loved them too.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 17, 2026
    J
    Verified Purchase
    J. Koller
    Alexandria, US
    ★★★★★ 1
    Issues still persist even with the new rechargable version.
    Nite Ize just can't get this figured out. This ball is by far my dogs favorite ball. We play ball daily, and when we don't get in a ball session during the day, we pull one of these out after dark. The problem persists even on the new rechargeable design. They just don't last. With the old battery operated version we just knew we would spend the 25 or so dollars each month to purchase a new one as the light mechanism would fail. When they updated to the rechargeable version I was ecstatic to try it. I bought one and it lasted an entire month before we lost it over a fence. I purchased a replacement thinking that Nite Ize finally figured out the design. I was wrong, this one lasted for about 6 or 7 evenings of ball fetching and stopped working. Just a disappointment that they can't get this issue solved.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 18, 2025
    C
    Verified Purchase
    Chris Aultman
    Massapequa, US
    ★★★★★ 5
    Doggy and Daddy like the pretty lights
    My dog loves this ball! So do his friends. He's not much of a ball guy during the day, but loses his mind with this ball. And I like it because the pretty changy colors agree with my edibles. Very durable and the charge seems to last at least five hours.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 23, 2025

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