The AFE 49-4403X MACH Force XP 4" Downpipe-Back Race Exhaust for your 2011-2015 GM 6.6L Duramax LML is engineered to go give your truck the edge in competition! Built from durable T409 stainless steel, the AFE MACH Force XP Exhaust System will increase power and performance in your pickup. This face exhaust system features a 4" diameter for increased flow. Available with and without tip or muffler.
- 4" Stainless Steel Construction
- Mandrel Bent For Maximum Flow
- Off-Road Downpipe-Back Exhaust
With Muffler & Tip 49-44032
No Muffler, No Tip 49-44031NM
Fitment Note: This front pipe will only fit 2015 models manufactured before July 2014. Models built after July of 2014 are equipped with a 3-bolt down pipe flange connection that is not compatible with this product.
Warning: This free-flow race exhaust system requires the use of an aftermarket performance programmer with off-road tuning.