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XR-1® Racing Exhaust
XR-1® Collector Mufflers

This is THE HOT set up in drag racing. This patented, award and race-winning product was designed to replace your current open header collector and serves as a power producing merge collector and muffler -- all in a single unit.
 
Made with the same patented, award and race winning flow through design as the Standard XR-1® Collector/Muffler. This muffler, however, is designed for door car applications where a Standard size Collector/Muffler is too large. 
 
Application: Dragsters, Full chassied cars accepted in NHRA, IHRA, Hot Rod Series, Brackets, Super Chevy, NSCA. Not recommended for Dragster application.




Part # Inlet Diameter Outlet Diameter Case Size Diameter Price  
40997 2 1/8" 3 1/2" 14" - Shorty 6 1/4" $419.99
40728 2 1/4" 4" 20 1/2" - Standard 6 3/4" $429.99
40976 2 1/4" 4" 14" - Shorty 6 3/4" $423.99
40977 2 3/8" 4 1/2" 14" - Shorty 6 3/4" $428.99
40703 2 3/8" 4 1/2" 20 1/2" - Standard 6 3/4" $591.99


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