No Limit Fabrication 6.7 PowerStroke 4" Stainless Steel Downpipe No Limit and a reduction of engine

and a reduction of engine power and performance

It features an aluminum impeller in place of the OEM plastic impeller

0L engine are known to stretch and it can blow out the head gaskets

lesser competitors commonly use T-Bone and square 90 degree fittings that can limit fuel flow

And just to point out

No Limit Fabrication 6.7 PowerStroke 4" Stainless Steel Downpipe No Limit and a reduction of engineThis 4" High Flow, 2 Piece Down Pipe drastically improves flow and installs much easier than the inferior factory unit, and is made of 304 Stainless Steel. This unit is a factory replacement, so it will work with any exhaust and any turbocharger that works wit the factory location.