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2011-16 6.6L LML GM Duramax Exhaust Manifolds

In 2011, GM finally corrected the pinched-down drivers side exhaust manifold that has plagued the previous Duramax's for years. However, as with all things factory, there is always room for improvemen ... read more

HP Inferno Heat Wrap Up to 2000 Degrees F HP-325001-Main 0.00 HP Inferno Heat Wrap Up to 2000 Degrees F Heatshield Products 325001 Diesel Power Products offers HP Inferno Heat Wrap Up to 2000 Degrees F PPE 116112000 High-Flow Exhaust Manifolds with Up-Pipes 11-15 6.6L GM Duramax LML PPE-116112000 20.00 PPE 116112000 High-Flow Exhaust Manifolds with Up-Pipes 11-15 6.6L GM Duramax LML PPE (Pacific Performance Eng.) 116112000 Gain exhaust outflow velocity while increasing reliability, and even 50 state CARB legal! PPE 118062030 Up-Pipe Gasket Kit (4 Piece) 01-16 6.6L GM Duramax PPE-118062030 3.00 PPE 118062030 Up-Pipe Gasket Kit (4 Piece) 01-16 6.6L GM Duramax PPE (Pacific Performance Eng.) 118062030 Whether you're upgrading your stock up-pipes for additional flow or merely replacing a worn out gasket, this four piece gasket kit from PPE is an essential piece of the puzzle. AFE BladeRunner Iron Exhaust Manifolds 01-16 GM 6.6L Duramax AFE-46-40024 26.00 AFE BladeRunner Iron Exhaust Manifolds 01-16 GM 6.6L Duramax AFE 46-40024 These exhaust manifolds will outflow your factory ones by 6% resulting in an increase in performance and throttle response. PPE OEM Length Replacement High Flow Up-Pipes 11-16 6.6L GM Duramax LML PPE-116121115 10.00 PPE OEM Length Replacement High Flow Up-Pipes 11-16 6.6L GM Duramax LML PPE (Pacific Performance Eng.) 116121115 Your diesel engine produces high exhaust temperatures and pressure that can eventually cause factory up pipes to fail. Replace your factory up pipes with these High Flow Replacement Up-Pipes from PPE.

In 2011, GM finally corrected the pinched-down drivers side exhaust manifold that has plagued the previous Duramax's for years. However, as with all things factory, there is always room for improvement. We offer upgraded exhaust manifolds as well as uppipe kits that are designed to significantly outflow the factory system, as well as discourage cracking, which has shown to be an issue on the factory uppipes when they are subjected to excessive exhaust gas temperatures (EGT's).

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