2011-2016 Duramax 6.6L LML Combo Kit
We keep these in stock and ready to ship at all times!
With this combo kit you can clean up the engine bay on your 2011-2016 Duramax LML which consists of the highest quality parts to ensure you have a reliable truck for many years down the road! It's usually added when doing head gaskets or a CP3 conversion and most of the parts are removed from the top of the engine.
It includes everything needed to install given you have a 3" down pipe or select one with this kit! This up pipe will not work with the factory down pipe.
What separates our kit? We do not use a blocker plate on the factory up pipe which most of the other cheap kits do causing the up pipe to crack leaving you with a massive exhaust leak. This kit will give you an entirely new 2" stainless steel passenger side up pipe to use instead of the blocker plate. Also included, is the best coolant line and components available so you don't have to worry about those failing and leaving you stranded which is another problematic area of the cheaper kits.
Included components,
WCFAB 2" stainless steel passenger side up pipe with both gaskets
JCG Coolant bypass kit
Stainless Steel Y-bridge Plate with stainless hardware (bolts and lock washers)
OEM AC Delco Y-bridge Gaskets
Optional:
Full set of 6 ARP 12PT up pipe bolts VIEW HERE
Full 3" Stainless Steel down pipe - WCFAB VIEW HERE
Unsure which down pipe to get? Here's a general reference guide but you have to physically look on any 2015.
11-14 vband
2015 can be either
2016 3 bolt
For the 2015 Duramax LML, you will need look through the passenger wheel well at the connection where the down pipe meets the exhaust to tell which down pipe you have and will need.
2011 - early 2015 will be a vband clamp holding them together. This is the "vband" option.
2015.5-2016 will have 3 bolts holding a ring up against the exhaust. You will see 3 nuts. This is a "3 bolt" option.
Related items or often purchased together:
Duramax LML cross over pipe found HERE
Duramax LML ventilation kit found HERE
Duramax LML 9th Injector bundle found HERE
Duramax LML down pipe plugs found HERE
Fleece Performance coolant plate found HERE
WCFAB resonator plate found HERE