Product Summary

Universal Fit, Straight-Through Muffler Type, Steel

    Key Specs

    MFG. Part #PM402501417
    BrandPorter Muffler

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    The Porter “Shorty Offset” Mufflers are for those who are replacing "turbo" mufflers with offset inlets and/or outlets that were commonly found on the 1960’s muscle-cars. They feature a 14" body length and 20" overall length so they will easily fit within the muffler pockets of cars originally equipped with oval mufflers while maintaining the original exhaust pipe routing. The offset Porter Muffler is offered in two options for your offset needs, 11 degrees and 17 degrees. The offset Porter Muffler is handmade using heavy duty 16 gauge aluminized tubing. The stainless steel Porter Muffler is handmade using heavy duty 16 gauge, highly polished aircraft grade, 304 stainless tubing. Our uniquely designed interior chamber is fitted with a gapped steel spring and packed with stainless steel wool to channel the exhaust and make that distinctive Porter Muffler sound. To continue our tradition of quality each Porter Muffler is handmade using only the best heavy gauge and high quality steel products sourced in the U.S.A.

    • 17 Deg Double offset
    • 2.50 inch inlet/outlet
    • Ceramic painted steel
    • 3.50 inch body diameter
    • 14 inch body length
    • 20 inch overall length


    MFG. Part #PM402501417
    BrandPorter Muffler
    Muffler TypeStraight-Through
    Inlet Diameter2.50"
    Outlet Diameter2.50"
    Overall Length20.00"
    Body Length14.00"
    Material TypeSteel
    Outside Diameter4.00"
    Case ShapeRound
    Inlet LocationOffset
    Outlet LocationOffset
    Outlet QuantityOne
    Inlet QuantityOne
    Sold in QuantityEach