The AFE 49-04067 ATLAS 4" Race Pipe for your 2015.5-2016 GM 6.6L Duramax LML is built from 4" mandrel bent aluminized steel tubing. Featuring a unique OE style tapered flange to fit the flanged down pipes found on models built after July 2014. Atlas exhaust race pipes are the perfect combination of performance, fit and value.
A unique tapered OE style flange is used for a complete 360 degree sealing surface.
A OE style bayonet hanger is used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.
Flow and Performance:
This ATLAS exhaust race pipe is constructed of 4" mandrel bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.
- Retains Factory Tail-Pipe
- 4" Mandrel-Bent Aluminized Tubing
- Uses Factory Mounting Points To Provide Stability
- OE Style Tapered Flange For 360-Degree Sealing Surface
- OE Style Bayonet Hanger To Maintain Stable Pipe Location
The factory exhaust system will need to be cut prior to installation.
Fits only on models manufactured after July 2014 with flanged downpipe.
Will not fit on Cab & Chassis models.
Fits 133.7" to 167.7" wheel bases only.
Fits: Crew Cab/Short Bed (153.7" Wheelbase), Crew Cab/Long Bed (167.7" Wheelbase), Extended Cab/Short Bed (144.2" Wheelbase), Extended Cab/Long Bed (158.2" Wheelbase) & Standard Cab/Long Bed (133.7" Wheelbase) models.
Warning: This free-flow race exhaust pipe requires the use of an aftermarket performance programmer with off-road tuning.