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Porter’s Shorty "Small Core" Mufflers

SKU: SSPM4025014SC
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Body Length- 14" Overall Length- 20"

Porter Mufflers "Small Core" mufflers are exactly the same as our Shorty Porter Muffler but is designed specifically for lower horsepower applications, while still running your 2.5” exhaust to give you that quality Porter Muffler sound.

What makes the small core special? The small core has the same core I.D. as the 3.5” body sizes; 1.375” --- vs. 2” like all of the other 4” body sizes



Inlet/Outlet Diameter

Body Diameter


Internal Diameter

Part Number
Stainless-Steel 2.50
1.375 SSPM4025014SC
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