{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2021 Toyota 4Runner
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
2021 Toyota 4Runner

2021 Toyota 4Runner Exhaust Systems

Refine by:

Shop Catalog

Showing 1 - 12 of 12 results
Sort by:
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
MBRP®
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
Part Number: M79S5342AL
Guaranteed to Fit
$349.99
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
Product Details
Material : Made of Aluminized SteelSeries : Installer SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : MBRP Lifetime Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Main Piping Diameter : 2.5 in. Main PipeRecommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 4.0L Engine -
Borla®
Exhaust System, 4.0L Engine -
Part Number: B25140379
Guaranteed to Fit
$799.99
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L
Product Details
Material : Made of Stainless SteelSeries : Touring SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : Million-mile Borla limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium and Lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Main Piping Diameter : 2.5 in. Main PipeRecommended Use : Performance ReplacementProduct Fit : Direct Fit
Exhaust System -
Flowmaster®
Exhaust System -
Part Number: F13817961
Guaranteed to Fit
$354.95
Vehicle Fitment
  • 2021 Toyota 4Runner All Submodels All Engines Dump Style Exit; Incl. 3 in. Tubing/Outlaw Muffler; Incl. Installation Hardware; 50 State Legal/California Emissions Compliant
Product Details
Material : Made of Stainless SteelSeries : Outlaw SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : Lifetime Flowmaster Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location : Exit: Turn Down Before Rear TireRecommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 3 In. Tubing, Single Dump Style Exit, 409 Stainless Steel, Incl. Installation Hardware -
Flowmaster®
Exhaust System, 3 In. Tubing, Single Dump Style Exit, 409 Stainless Steel, Incl. Installation Hardware -
Part Number: F13717972
Guaranteed to Fit
$322.15
Vehicle Fitment
  • 2021 Toyota 4Runner All Submodels All Engines 3 in. Tubing; Single Dump Style Exit; 409 Stainless Steel; Incl. Installation Hardware
Product Details
Material : Made of Stainless SteelSeries : FlowFX SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : Lifetime Flowmaster Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location : Exit: Turn Down Before Rear TireRecommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
MBRP®
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
Part Number: M79S5342BLK
Guaranteed to Fit
$489.99
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
Product Details
Material : Made of Aluminized SteelSeries : Black SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : MBRP Lifetime Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Main Piping Diameter : 2.5 in. Main PipeRecommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 4.0L Engine -
BRExhaust®
Exhaust System, 4.0L Engine -
Part Number: BO1060756
Guaranteed to Fit
$628.00
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Rear Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Installation Hardware Included; Replacement System
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Rear Wheel Drive, Installation Hardware Included; Replacement System
Product Details
Material : Made of Stainless SteelQuantity Sold : KitWarranty : 2-year BRExhaust limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Main Piping Diameter : 2.5 in. Main PipeRecommended Use : OE ReplacementProduct Fit : Direct Fit
Exhaust System, 4.0L Engine -
Magnaflow®
Exhaust System, 4.0L Engine -
Part Number: M6619546
Guaranteed to Fit
$816.00
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Rear Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Passenger Side Rear Exit
Product Details
Material : Made of Stainless SteelSeries : Overland SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : Lifetime Magnaflow limited construction warranty and 1-year Magnaflow limited finish warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location : Exit: Rear (Passenger Side)Main Piping Diameter : 2.5 in. Main PipeRecommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 4.0L Engine, Does Not Fit Models Equipped with Kinetic Dynamic Suspension System (KDSS) -
aFe®
Exhaust System, 4.0L Engine, Does Not Fit Models Equipped with Kinetic Dynamic Suspension System (KDSS) -
Part Number: A1549360401B
Guaranteed to Fit
$954.00
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Does Not fit Models Equipped With Kinetic Dynamic Suspension System (KDSS)
Product Details
Notes : Adds up to +11 HP/ +19 lbs. ft. torque; Black TipsMaterial : Made of Stainless SteelSeries : Power Machforce XP SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : 2-year AFE limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location : Exit: Rear (Passenger Side)Main Piping Diameter : 2.5 in. / 3 in. Main PipeRecommended Use : Performance ReplacementProduct Fit : Direct Fit
Exhaust System, 4.0L Engine -
Magnaflow®
Exhaust System, 4.0L Engine -
Part Number: M6615145
Guaranteed to Fit
$984.00
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Rear Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Rear Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive, Single Straight Passenger Side Rear Exit
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Rear Wheel Drive, Single Straight Passenger Side Rear Exit
Product Details
Material : Made of Stainless SteelSeries : MF SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : Lifetime Magnaflow Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Exit Location : Exit: Rear (Passenger Side)Main Piping Diameter : 2.5 in. Main PipeRecommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
MBRP®
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
Part Number: M79S5343AL
Guaranteed to Fit
$344.99
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
Product Details
Material : Made of Aluminized SteelSeries : Armor Lite SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : 3-year MBRP limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE UpgradeProduct Fit : Direct Fit
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
MBRP®
Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
Part Number: M79S5343304
Guaranteed to Fit
$554.99
Vehicle Fitment
  • 2021 Toyota 4Runner Base 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Nightshade 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner Venture 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Off-Road Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Trail 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner Limited 6 Cyl 4.0L Sport Utility, Rear Wheel Drive
  • 2021 Toyota 4Runner TRD Pro 6 Cyl 4.0L Sport Utility, Four Wheel Drive
  • 2021 Toyota 4Runner SR5 Premium 6 Cyl 4.0L Sport Utility, Four Wheel Drive
Product Details
Material : Made of Stainless SteelSeries : Armor Pro SeriesSystem Type : Cat-BackQuantity Sold : KitWarranty : Lifetime MBRP limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE UpgradeProduct Fit : Direct Fit
Header-Back Exhaust System, Made of Aluminized Steel
Flowmaster®
Header-Back Exhaust System, Made of Aluminized Steel
Part Number: F131040FM
Universal Fit
$449.95
Product Details
Material : Made of Aluminized SteelSystem Type : Header-BackQuantity Sold : KitWarranty : 3-year Flowmaster limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE UpgradeProduct Fit : Universal
Page 1 of 1 | Showing 1 - 12 of 12 results

Top Rated Products

MBRP Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
$344.99( Review)
Easy installation and good quality.
David J.
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

Flowmaster Header-Back Exhaust System, Made of Aluminized Steel
$449.95
Q:Does this setup bolt directly to the stock manifold or if it has to bolt to the header what type of header ? Show Less
D
A:BEST ANSWERHi Dsmon, thank you for reaching out. This universal product connects to an exhaust header. The manufacturer doesn't specify the exhaust header for this universal product since this item requires header collector adapter cones for installation. This product fits the 1968-1972 GM A-body cars with a V8 engine. This product has a 3-inch tubing diameter. Should you decide to order this kit, you can use this link to continue ordering this product at a discounted price today: https://www.carparts.com/exhaust-system/flowmaster/f131040fm?can=CPAP3648_CSQA_20241202 I hope this helps. Happy shopping. Show less
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >
MBRP Exhaust System, 4.0L Engine, Four Wheel Drive/Sport Utility -
$344.99
Q:Will this muffler be similar in noise level to a stock 4Runner muffler?  Want to switch out my TRD pro exhaust for something quieter. Show Less
Cory D.
A:BEST ANSWERHi Cory, I'm pleased to assist you. Yes, this has a moderate sound level, quieter. Click the link below to continue ordering and take advantage of our flash sale and limited supplies. https://www.carparts.com/exhaust-system/mbrp/m79s5343al?can=CPGG4850_CSQA_20230426 I hope this is helpful. Enjoy shopping! Show less
Grace G.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

Engine Knocking Sound: What Does it Mean?
Engine Knocking Sound: What Does it Mean?You may notice that the noise becomes more frequent when engine speed is increased, especially if the sound is due to a failed bearing. What Does a Knocking Noise in the Engine Mean?