4 - inch stainless constant - diameter pipes. Turbo Back System with polished straight - thru muffler. Outflows stock. 5 - inch Chrome or Cerakote Black Tip. ISB Pickup Constant - diameter to slash backpressure and lower exhaust gas temperatures, Banks Monster exhaust pipes bolt behind the turbocharger. The streamlined 4 inch turbine outlet pipe, head pipe, intermediate pipe and tailpipe are formed of stainless, heavy - wall tubing with constant - diameter bends to outflow stock and the competition. Banks replaces the factory's restrictive muffler with a polished - stainless Monster muffler, featuring a straight - through 4 inch diameter flow - path with a Banks - designed expansion chamber to dissipate the annoying mid - range exhaust drone that plagues most straight - through mufflers. Muffler utilizes spun ceramic, very - high - temperature packing and delivers an authoritative - but never intrusive - exhaust sound. The huge 5 inch polished - stainless steel tailpipe tip sports a rolled edge. And to help keep it looking good, there's a 12 inch air gap to keep heat from tarnishing the finish. An adjustable clamp lets you position it on the tailpipe just right. Monster Exhaust System, Single Exit, Chrome or Cerakote Black Round Tip for use with 1998 - 2002 Dodge 5.9L, Extended or Standard Cab