Billy Boat GMC Denali True Dual System (2001-2009)

Designed for the GMC Denali and manufactured using the highest quality stainless steel, these exhaust systems for the Denali and Denali XL are fantastic visual and performance upgrades, sure to increase horsepower, torque, and exhaust sound on any Denali. Billy Boat has been making industry leading exhaust systems since 1989 when they designed and installed their first Porsche racing performance exhaust system, and that Porsche racing pedigree translates well to these fantastic Denali exhausts as well. With true dual exit, double-walled twin 4" exhaust tips, these are certain to look and sound good for many years to come.

Available for multiple different Denali applications:

• 2007-09 Denali XL 6.2L
  
• 2007-09 Denali 6.2L
• 2001-05 Yukon Denali XL 6.0L
• 2002-05 Denali 6.0L

Also available, to couple with these exhaust systems, are the Billy Boat GM SUV Short Headers, for all 1999-2005 6.0L Denalis. The shorty headers are a fantastic way to further increase the sound and performance boosts of the Billy Boat system by increasing the exhaust flow for more HP and Torque across the RPM range with an improved exhaust note.