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By changing the block off plates behind the center tip you can adjust the SPL (Sound Pressure Level) to your taste
25" diameter tail pipes Borla(r) Cat-Back(tm) system is intended for vehicles with significant performance upgrades
75" diameter into dual 2
5L PowerBoost engine
Borla 3 -1/2in In/Out x 5in Round x 8in Long XR-1 Sportsman Shorty Racing Muffler 2003-gmc-sierra-1500-sl-esi4783384 By changing the block offHigh 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
US$ 725.03
US$ 12.52
US$ 714.87
