“Kooks 99-04 Ford Mustang GT / Cobra 2 1/2in In x 2 1/2in OEM Out Cat SS X Pipe Kooks HDR Req”
“...1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V...”
Confirm fitment with the part number before ordering.
Product information
Manufacturer information. Check the part number and installation requirements for your vehicle.
Supplier details checked 2026-09-23 · Test catalog
Product description
2-1/2in. x 2-1/2in. (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V. 2-1/2in. 16GA 304 Stainless construction. Ball and socket style connection to Headers. Must be used with Kooks Headers with 2-1/2in. Co
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V. 2-1/2" 16GA 304 Stainless construction. Ball and socket style connection to Headers. Must be used with Kooks Headers with 2-1/2" Collectors
Manufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.
Kooks Products Are Backed By A Limited Lifetime Warranty To The Original Purchaser
Kooks Products Are Dyno And Race Tested And Designed For Maximum Power
Kooks Uses T304 Aircraft Quality Stainless Steel
Manufactured In The USA
Manufacturer application notes
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V. 16GA 304 Stainless Steel construction Ball and socket style connection to Headers Kooks Performance Cats 400 Cell High Flow Catalytic Converters Performance Cats not for use on Forced Induction Applications Requires Kooks Headers with 2-1/2" Collectors Includes Clamps 2-1/2" Outlet connects to OEM exhaust
Manufacturer notes
2-1/2in. x 2-1/2in. (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V. 2-1/2in. 16GA 304 Stainless Steel construction Ball and socket style connection to Headers Kooks Performance Cats 400 Cell High Flow Catalytic Converters Performance Cats not for use on Forced Induction Applications Requires Kooks Headers with 2-1/2in. Collectors Includes Clamps 2-1/2in. Outlet connects to OEM exhaust
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V. 2-1/2" 16GA 304 Stainless Steel construction Ball and socket style connection to Headers Kooks Performance Cats 400 Cell High Flow Catalytic Converters Performance Cats not for use on Forced Induction Applications Requires Kooks Headers with 2-1/2" Collectors Includes Clamps 2-1/2" Outlet connects to OEM exhaust
Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
X Pipes
UPC / barcode
842422162917
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
Compliant
Air freight prohibited
No
Not CARB approved
Yes
CARB acknowledgement required
Yes
Freight delivery required
No
Powersports product
No
More manufacturer information
Other product descriptions
2-1/2" x 2-1/2" (OEM) Catted Stainless Steel X-Pipe. 1999-2004 Ford Mustang GT and Cobra 4.6L 2V/4V. 2-1/2" 16GA 304 Stainless Steel construction. Ball and socket style connection to Headers. Kooks Standard 300 Cell High Flow Catatlytic Converters. Must be used with Kooks Headers with 2-1/2" Collectors. Includes Clamps. 2-1/2" Outlet connects to OEM exhaust. Kooks Standard Cats not recommended for use with forced induction.
Kooks 99-04 Ford Mustang GT / Cobra 2 1/2in In x 2 1/2in OEM Out Cat SS X Pipe Kooks HDR Req
2-1/2in. x 2-1/2in. Catted X-Pipe
2-1/2" x 2-1/2" Catted X-Pipe
2-1/2in. X-Pipe
2-1/2" X-Pipe
About the manufacturer
Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!"
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