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75" diameter into dual 2
Notched necks are designed for clamp in installation using 1" wide band style clamps 18330 (clamps not included)
The system features dual split side exit with single 4" round bright chrome on T-304 stainless steel tips on each tail pipe
use band clamps 18004 & 18006
Borla 3 -1/2in In/Out x 5in Round x 8in Long XR-1 Sportsman Shorty Racing Muffler 2003-gmc-sierra-1500-sl-esi4783384 75" diameter into dual 2High quality austenitic stainless steel. Patented, race winning XR 1 Raceline technology. 3 options: Offset Made with the same patented, flow through design as the XR 1 Sportsman oval. The inlet outlet are offset to the same side of the muffler, to accommodate transmission and frame rail interference on some applications Oval BORLAs #1 selling racing muffler. Satisfies the needs of most racing applications because it is the lightest, most compact, and
