$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: VALUE

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

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: VALUE

Summit Racing SpeedCard - learn how to get 10% back - Get Details!

Filters

In Stock
- In Stock Items. Ships Today. (2) 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. (6) 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.
Make/Model
Section
- Catalytic Converters
- Exhaust Systems & Kits
Part Type
- Catalytic Converters (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.
- Exhaust Systems (2) 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
Price Range
In Stock

Selected Filters

Filter Results by Vehicle

Loading...

Home
2003 CADILLAC
Product Results

Availability

- In Stock Items. Ships Today. (2) 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. (6) 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
Make/Model
Section
- Catalytic Converters
- Exhaust Systems & Kits
Part Type
- Catalytic Converters (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.
- Exhaust Systems (2) 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
Price Range

MagnaFlow

2003 CADILLAC MagnaFlow Parts and Accessories

Showing In Stock Items. Show All 7 Items.

Individual Parts

Part Groups

Results 1 - 6 of 6

MagnaFlow Direct-Fit Catalytic Converters 93419

MagnaFlow Direct-Fit Catalytic Converters 93419

MagnaFlow Direct-Fit Catalytic Converters 93419

Catalytic Converter, Stainless Steel, Chevy, GMC, Pickup, SUV, 4.8, 5.3L, Front, Each

Part Number: MPE-93419

3.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MagnaFlow Direct-Fit Catalytic Converters 51097

MagnaFlow Direct-Fit Catalytic Converters 51097

MagnaFlow Direct-Fit Catalytic Converters 51097

Catalytic Converter, Direct Fit, Stainless Steel, Cadillac, Chevy, GMC, Each

Part Number: MPE-51097

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

MagnaFlow Street Series Performance Exhaust Systems for 2000-2006 YUKON, TAHOE, 2002-2005 ESCALADE - 15666

MagnaFlow Street Series Performance Exhaust Systems for 2000-2006 YUKON, TAHOE, 2002-2005 ESCALADE - 15666

MagnaFlow Street Series Performance Exhaust Systems for 2000-2006 YUKON, TAHOE, 2002-2005 ESCALADE - 15666

Exhaust System, Cat-Back, Stainless Steel, Polished Stainless Tip, Cadillac, Chevy, GMC, 4.8, 5.3L, Kit

Part Number: MPE-15666

4.29 out of 5 stars ( 7 )

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

MBRP Installer Series Exhaust Systems for 2000-2006 TAHOE, YUKON - S5026AL

MBRP Installer Series Exhaust Systems for 2000-2006 TAHOE, YUKON - S5026AL

4.75 out of 5 stars ( 11 )

Estimated Ship Date: Today

...Loading

MagnaFlow Street Series Performance Exhaust Systems for 2002-2006 ESCALADE, YUKON - 15734

MagnaFlow Street Series Performance Exhaust Systems for 2002-2006 ESCALADE, YUKON - 15734

MagnaFlow Street Series Performance Exhaust Systems for 2002-2006 ESCALADE, YUKON - 15734

Exhaust System, Cat-Back, Stainless Steel, Polished Stainless Tip, Cadillac, GMC, 6.0L, Kit

Part Number: MPE-15734

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4451421

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4451421

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4451421

Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Right Position, Cadillac, GMC, 6.0L, Each

Part Number: MPE-4451421

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4551419

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4551419

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters 4551419

Catalytic Converter, Direct-Fit Catalytic Converter

Part Number: MPE-4551419

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

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