Get Peace of Mind With the Summit Racing Protection Plan!

Make/Model Search
Make/Engine Search

Brands
Savings Central
Contact Us
Help Center
1-800-230-3030

Call Us
My Garage
Wish List
Order Status & Returns

Welcome
My Account

Order Status

Wish List
Savings Central
Shop by Brand
Shop Your Passion
- Shop Your Passion
- Truck / SUV
  
  Jeep®
  
  Restoration
  
  Stock Replacement
  
  Late Model Muscle
  
  Tools
  
  Gifts, Clothing, & More
  
  Circle Track
  
  Street Rod
  
  Powersports
  
  Paint & Body
  
  Marine
  
  Jr Dragster
Gift Cards
My Garage
See Our Catalogs
News & Events
Career Opportunities
Contact Us
Help Center
1-800-230-3030 1-800-230-3030
New Products
Shop by Make/Model
Sign In

Search Make/Model

Search Make/Engine

Sign In

Welcome
Account Dashboard
Profile
Order Status & Returns
Buy It Again
Wish List
Rewards Program
Gift Cards & Summit Bucks
Address Book
My Garage Settings
Email Preferences
Text Notifications
My Reviews
My Questions
Catalogs
Tax Exemption
Sign In

Get Peace of Mind With the Summit Racing Protection Plan!

FREE SHIPPING on Orders Over $109!

Filters

In Stock
- In Stock Items. Ships Today. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Department
Part Type
- Exhaust Systems (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Performance Packages (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Roadside Emergency Tool Kits and Components (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Sway Bars (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Engine
Filter Options
- Stock Replacement (1)
Savings Central
- On Sale (7)
- Free Shipping (1)

Selected Filters

Filter Results by Vehicle

Loading...

Home
2016
Product Results

Availability

- In Stock Items. Ships Today. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Department
Part Type
- Exhaust Systems (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Performance Packages (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Roadside Emergency Tool Kits and Components (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Sway Bars (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Engine
Filter Options
- Stock Replacement (1)
Savings Central
- On Sale (7)
- Free Shipping (1)

Roush Performance

2016 Roush Performance Parts and Accessories

Individual Parts

Part Groups

Results 1 - 7 of 7

Roush Mustang Axle-Back Exhaust Systems for 2015-2017 MUSTANG - 421834

Roush Mustang Axle-Back Exhaust Systems for 2015-2017 MUSTANG - 421834

Roush Mustang Axle-Back Exhaust Systems for 2015-2017 MUSTANG - 421834

Exhaust System, Rear Axle-back, Stainless Steel, Natural, Split Rear Exit, Ford, 5.0L, Kit

Part Number: RSP-421834

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Roush 2015-25 Roush Mustang Front/Rear Adjustable Sway Bars for 2015-2025 MUSTANG - 422340

Roush 2015-25 Roush Mustang Front/Rear Adjustable Sway Bars for 2015-2025 MUSTANG - 422340

Roush 2015-25 Roush Mustang Front/Rear Adjustable Sway Bars for 2015-2025 MUSTANG - 422340

Sway Bars, 3-Way Adjustable, Front 1.375 in, Rear 1 in., Steel, Red Powdercoated, Ford, Kit

Part Number: RSP-422340

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Roush Mustang Axle-Back Exhaust Systems for 2015-2025 MUSTANG - 421837

Roush Mustang Axle-Back Exhaust Systems for 2015-2025 MUSTANG - 421837

Roush Mustang Axle-Back Exhaust Systems for 2015-2025 MUSTANG - 421837

Exhaust System, Rear Axle-back, Stainless Steel, Natural, Split Rear Exit, Ford, 2.3L, 3.7L

Part Number: RSP-421837

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Roush Mustang Axle-Back Exhaust Systems for 2015-2017 MUSTANG - 421834-BLK

Roush Mustang Axle-Back Exhaust Systems for 2015-2017 MUSTANG - 421834-BLK

Roush Mustang Axle-Back Exhaust Systems for 2015-2017 MUSTANG - 421834-BLK

Exhaust System, Rear Axle-back, Dual, Stainless Steel, Natural, Split Rear Exit, Two Black Tips, Ford, 5.0L, Kit

Part Number: RSP-421834-BLK

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Roush Mustang Trunk Tool Kits for 2005-2023 MUSTANG - 422314

Roush Mustang Trunk Tool Kits for 2005-2023 MUSTANG - 422314

Roush Mustang Trunk Tool Kits for 2005-2023 MUSTANG - 422314

Roadside Emergency Tool Kit and Components,Trunk Mounted Tool Kit, Ford, Kit

Part Number: RSP-422314

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Roush Mustang Axle-Back Exhaust Systems for 2015-2025 MUSTANG - 421837-BLK

Roush Mustang Axle-Back Exhaust Systems for 2015-2025 MUSTANG - 421837-BLK

Roush Mustang Axle-Back Exhaust Systems for 2015-2025 MUSTANG - 421837-BLK

Exhaust System, Rear Axle-back, Stainless Steel, Natural, Split Rear Exit, Ford, 2.3L, 3.7L

Part Number: RSP-421837-BLK

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

Roush 2015-17 Mustang 3.7L V6 Level 1 Performance Pacs for 2015-2017 MUSTANG - 421999

Roush 2015-17 Mustang 3.7L V6 Level 1 Performance Pacs for 2015-2017 MUSTANG - 421999

Roush 2015-17 Mustang 3.7L V6 Level 1 Performance Pacs for 2015-2017 MUSTANG - 421999

Performance Package, Level 1 Performance Pac, Ford, 3.7L, Kit

Part Number: RSP-421999

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 2/16/2026 if shipped by air

1

Page 1 of 1

Modal Header

Contact us with questions.

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify

Stay Updated with Emails from Summit Racing

Never miss a sale on new parts, tools, and more!

= Required

First Name

Last Name

Email Address Email required

See Our Catalogs

News & Events

News & Events Home
OnAllCylinders (blog)
Calendar of Events
New Product Releases
Summit Racing News
News You Can Use
Featured Vehicles
Media Center
Sanctioning Bodies

Help

Help Center
Return Policy
Beat-A-Price Guarantee
Payment Options
Contact Us

Social

Facebook
X/Twitter
Instagram
Pinterest
YouTube
Podcast

About Summit

Corporate History
Retail Locations

My Account

Profile
Email Preferences
Order Status & Returns
Wish List
Address Book
My Reviews
My Questions
My Garage
Sign In

Career Opportunities

More

Summit Racing Credit Card
Gift Cards
Calculators & Tools
Promo Exclusions
Become an Affiliate
Summit Racing Rewards Program
Summit Racing Equipment Protection Plan

Terms of Use | Privacy and Security | Site Accessibility
Copyright 2026 by AUTOSALES, INCORPORATED
dba Summit Racing Equipment | Trademarks

Let's Build it Together^™

Modal Header