Like regular Hedman TURBO Mufflers, these Hedder Mufflers are high quality turbo-style mufflers. They come from the factory with a 12" head pipe welded on, and an integrated collector.
 
Part # ProductTube DiameterColorEngineExhaust System DiaFinishInlet DiameterLengthOutlet DiameterInlet Inside DiameterOutlet Inside DiameterOutlet Size(s) Media
25660 Turbo Hedder Muffler for 2-1/4" Exhaust System; 3" 3-Bolt Triangular Collector 2-1/4"Galvanized Steel2.25"28"3"2.25"2.25"2.25"
Photo
$78.50
25662 Turbo Hedder Muffler for 2-1/2" Exhaust System; 3" 3-Bolt Triangular Collector 2-1/2"Galvanized Steel2.50"28"3"2.50"2.50"2.50"
Photo
$80.07
25667 TURBO HEDDER MUFFLER 2 1/2" EXHAUST; 3" BALL & SOCKET STYLE HEADER COLLECTOR 2-1/2"Galvanized Case28"2-1/2"
$80.07
25666 TURBO HEDDER MUFFLER 2 1/4" EXHAUST; 3" BALL & SOCKET STYLE HEADER COLLECTOR 2-1/4"Galvanized Case28"2-1/4"
$78.50
 
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http://hedman.com/images/ePIM/original/25662.jpg