Borla Extension Pipe For 148" WB (60691) Oversize The improved IPD intake design

The improved IPD intake design allows for smoother

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A hat that will withstand the test of time and still look radical-whether you're a mechanic

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Borla Extension Pipe For 148" WB (60691) Oversize The improved IPD intake designBorla F 250 F 350 SUPER DUTY '17 '19 6. 2L V8 AT 2+4WD 4DR 3. 5" x 8. 5" EXTENSION PIPE FOR 148"WB (60691) Replace the muffler behind the primary muffler in the "S Type" system with this Polyphonic Harmonizer to attain the "ATAK" sound level (louder than "S Type"). BORLA's Polyphonic Harmonizer Technology utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean,