FREE 1 to 3-Day Delivery on Orders $149+ Details

Sign In
Sign In Create Account
Cart(0)

AmericanMuscle.com

Change Vehicle
Wheels Gallery
3D Challenger Builder

2008-2023

Deals

Most Popular Clearance Countdown to Black Friday Just Reduced! Military, Medical & First Responder Program New Products Open Box Rebates Shop by Brand

Shop All Deals
Gifts & Lifestyle

Apparel Automotive Cameras Automotive Detailing Backup Camera Systems Camping Gear Car Covers, Bras and Paint Protection Collectibles Gift Cards Keychains License Plates & Plate Frames Paints & Coatings Pet Accessories Posters & Murals Safety Gear & Equipment Specialty Tools & Maintenance Sun Shades

Shop All Gifts & Lifestyle
Brakes

Big Brake Kits Brake Accessories Brake Lines & Brake Hoses Brake Pads Brake Rotor & Pad Kits Brake Rotors Caliper Covers

Shop All Brakes
Drivetrain

Axles Clutch Accessories Clutch Kits Driveshafts Flywheels Gear Accessories Gear Kits Limited Slip Differentials Shift Knobs Shifter Accessories Shifters Transmission Parts

Shop All Drivetrain
Engine

Air, Oil & Fuel Filters Alternators Batteries Blow Off Valves Camshafts Cold Air Intakes Crate Engines & Blocks Cylinder Heads & Valvetrain ECUs & Engine Management Systems Engine Dress Up Fabrication Parts & Accessories Fuel Delivery & Injectors Gaskets & Seals HVAC Parts Ignition Coils Ignition Parts Intake & Throttle Body Spacers Intake Manifolds & Plenums Intercoolers Motor Mounts Nitrous Kits Oil & Engine Fluids Oil Pans Oil Separators Power Steering Pump Radiators & Cooling System Parts Remote Start, Keyless Entry, & Alarm Reservoirs & Tanks Supercharger Kits & Accessories Throttle Bodies Throttle Enhancement Turbocharger Kits & Accessories Underdrive Pulleys Valve Covers Valves, Sensors & Sending Units Water Pumps

Shop All Engine
Exhaust

Axle-Back Exhaust Cat-Back Exhaust Exhaust Accessories Exhaust Combos Exhaust Tips Headers Muffler Delete Mufflers O2 Sensor Extension O2 Sensors X-Pipes & H-Pipes

Shop All Exhaust
Exterior

Antennas Bike Racks Body Kits Bumpers Caliper Covers Car Covers, Bras and Paint Protection Chin Spoilers & Front Splitters Decals, Stickers and Racing Stripes Decklid Panels Door Accessories Emblems & Badges Exterior Trim Fender Liner Fenders Fuel Doors & Gas Caps Grilles Headlight Splitters Hood Pins Hood Scoops Hood Vents Hoods & Hood Accessories Light Bars & Wind Deflectors Light Covers & Tint Light Trim & Bezels Louvers - Quarter Window Louvers - Rear Window Mirrors, Mirror Covers & Side Mirrors Mud Flaps Racks & Carriers Rear Diffusers & Valances Rear Spoilers & Wings Scoops - Side Side Skirts & Rocker Panels Tire Covers Towing, Hitches, & Tow Hooks Vinyl Wrap & PPF Accessories Wheels

Shop All Exterior
Intake

Air, Oil & Fuel Filters Cold Air Intakes Cylinder Heads & Valvetrain Ignition Parts Intake & Throttle Body Spacers Intake Manifolds & Plenums Mass Air Flow Meters & Sensors Nitrous Kits Supercharger Kits & Accessories Throttle Bodies Turbocharger Kits & Accessories

Shop All Intake
Interior

Arm Rests & Center Console Trim Audio Accessories Door & Door Accessories Door Sill Plates Floor Mats & Carpet Gauge Clusters Gauges & Gauge Pods Interior LED Lighting Interior Trim Interior Trim - Carbon Fiber Pedals Phone Mounts Radio and Navigation Systems Rear Seat Delete Kits Remote Start, Keyless Entry, & Alarm Seat Belts & Harnesses Seats & Seat Covers Shift Boots Shift Knobs Steering Wheels Sun Visors Switches Trunk Mats & Accessories

Shop All Interior
Lights

Fog Lights Headlights LED Strips & Puddle Lights Light Bars & Wind Deflectors Light Bulbs Light Covers & Tint Light Trim & Bezels Sequential Tail Lights & Turn Signals Side Marker Lights Tail Lights Third Brake Lights Turn Signals

Shop All Lights
Suspension

Air Suspension Ball Joint & Bumpsteer Kits Caster Camber Plates Coil Over Kits Control Arms K-Members, Subframe Connectors, & Braces Lowering Kits Panhard Bars Roll Bars & Roll Cages Shocks & Struts Springs Steering Components Strut & Shock Tower Braces Suspension Bushings Suspension Handling Kits Sway Bars & Anti-Roll Kits Tie Rod Ends

Shop All Suspension
Tuners

Custom Tune Files Custom Tuners Preloaded Tuners Throttle Enhancement Tuner Mounts & Accessories

Shop All Tuners
Wheels & Tires

Caliper Covers Tire Covers Tires Wheel Accessories Wheels Wheels & Tires Kits

Shop All Wheels & Tires

$6,000 Giveaway! Enter Now >

Have a minute to review your recent purchases?

Challenger Accessories & Parts
Dodge Challenger Exterior

Dodge Challenger Rear Diffusers & Valances

1-3 Day Delivery

to: 43215

Please enter a valid US or CA postal code

We're sorry, zip can't be updated at this time.

Open Box Items Only

Sale Items Only

Featured Brands

Shop Challenger Rear Diffusers & Valances: 3D Builder

Please enter your email to save your Virtual Build

No thanks

Terms & Conditions

Close X

Enter Your Email to Save Products.

By entering your email, you agree to our Privacy Policy and Terms & Conditions, and to receive recurring automated marketing emails from AmericanMuscle.

Aftermarket Parts & Accessories
Exterior Mods for Muscle Cars
Aftermarket Rear Diffusers & Valances

Community Support

AM Blog
AM Scholarships
AM Decal

Resources

Project Cars & Builds
Events
Hot Lap Episodes
Shop by Year
Shop Parts by Brand
Technical Guides
Blog
Request Free Catalog
View Digital Catalog

Customer Service

Where's my order?
Start a Return
Return Policy
Financing
Got Questions?
Customer Service
Chat with us!
Military, Medical & First Responder Program
Terms of Use

About

Overview
Awards
Giving Back
Submit a Guide
Careers
Charity Auto Show
Dealer Program
Sales Techs
Reviews

Shop Challenger

Shop Dodge Challenger Parts by Year & Model
Shop Dodge Challenger Parts & Accessories
Request Free Challenger Catalog

Shop Ford Mustang
Shop Dodge Charger
Shop Chevy Camaro
Shop Chevy Corvette
Shop Ford Mustang Mach-E

2024 Challenger Parts
2023 Challenger Parts
2022 Challenger Parts
2021 Challenger Parts
2020 Challenger Parts
2019 Challenger Parts
2018 Challenger Parts
2017 Challenger Parts
2016 Challenger Parts
2015 Challenger Parts
2014 Challenger Parts
2013 Challenger Parts
2012 Challenger Parts
2011 Challenger Parts
2010 Challenger Parts
2009 Challenger Parts
2008 Challenger Parts

Enter Your Email For Deals & Offers

By entering your email, you agree to our Privacy Policy and Terms & Conditions, and to receive recurring automated marketing emails from AmericanMuscle.

Connect With Us

Connect with us on Facebook
AmericanMuscle on Youtube
Connect with us on Instagram

AmericanMuscle
AmericanTrucks
ExtremeTerrain
Ecklers

FORD, FORD MUSTANG, MUSTANG GT, SVT COBRA, MACH 1 MUSTANG, SHELBY GT 500, COBRA R, BULLITT MUSTANG, SN95, S197, V6 MUSTANG, FOX BODY MUSTANG,MACH-E, AND 5.0 MUSTANG ARE REGISTERED TRADEMARKS OF FORD MOTOR COMPANY. DODGE, DODGE CHALLENGER, DAYTONA 392, DAYTONA R/T, DODGE CHARGER, SRT 392, SRT8, R/T, RALLYE REDLINE, SCAT PACK, SRT HELLCAT, SRT DEMON, T/A, PENTASTAR, AND HEMI ARE REGISTERED TRADEMARKS OF FIAT CHRYSLER AUTOMOBILES (FCA). SALEEN IS A REGISTERED TRADEMARK OF SALEEN INCORPORATED. ROUSH IS A REGISTERED TRADEMARK OF ROUSH ENTERPRISES, INC. CHEVROLET, CHEVROLET CAMARO, CAMARO, LS, LT, LT1, SS, Z/28, ZL1, ECOTEC, CORVETTE, ZO6, ZR1, STINGRAY, AND GRAND SPORT ARE REGISTERED TRADEMARKS OF GENERAL MOTORS LLC.. AMERICANMUSCLE HAS NO AFFILIATION WITH THE FORD MOTOR COMPANY, ROUSH ENTERPRISES, FIAT CHRYSLER AUTOMOBILES, SALEEN, OR GENERAL MOTORS LLC.. THROUGHOUT OUR WEBSITE AND PRODUCT CATALOG THESE TERMS ARE USED FOR IDENTIFICATION PURPOSES ONLY. 2003-2022 AMERICANMUSCLE.COM. ®ALL RIGHTS RESERVED

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Request your Free Catalog in under a minute

First Name

Last Name

By entering your email, you agree to our Privacy Policy and Terms & Conditions, and to receive recurring automated marketing emails from AmericanMuscle.

*Required field

Address

Apt / Suite / PO Box

Zip / Postal Code

City

State

Country

*Required field

Receive text messages for special offers and discounts.

Mobile Number

By entering my number, I AGREE and expressly consent to receive recurring marketing or promotional text messages from American Muscle and our related brands and affiliates using an automatic telephone dialing system at the telephone number voluntarily provided above. Message frequency may vary. Consent to receive text messages for these purposes is not a condition of any purchase, service, or sweepstakes entry. Msg and data rates may apply. Reply HELP to 77572 for help. Reply STOP to 77572 to cancel. View Terms & Privacy Policy.

Coming Soon!

A catalog for isn't available yet.

$10 off your first order!

Enter your email to receive your coupon code and start upgrading your

No thanks

By using our website, you agree to our Privacy Policy and Terms & Conditions.

This site uses cookies to provide you with the best experience possible.
Read our Privacy Policy

Connect with an AmericanMuscle Sales Tech

Have a minute to review your recent purchases?

Dodge Challenger Rear Diffusers & Valances

Shop Challenger Rear Diffusers & Valances: 3D Builder

AM Blog

AM Scholarships

AM Decal

Request your Free Catalog in under a minute

Coming Soon!

$10 off your first order!