Improve exhaust flow with this passenger side exhaust manifold for Duramax 6.6L engines. The larger 2″ diameter provides better exhaust flow resulting in improved flow and performance. Stainless steel construction to replace OEM pipes that develop bellows leaks over time.
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Duramax 6.6L engines.
Higher flow capacity than stock pipe for improved flow
Improved throttle response
Improved turbocharging efficiency
Higher flow and lower airflow turbulence for improved power delivery
Does not include spigots for EGR system
Includes new MLS gaskets
Note: On LB7 and LLY-LML engines that do not include an EGR pipe, the EGR system must be removed. Shock absorber mount modification may be required for 2015+ engines.
* For off-road use only. Race tuning required