Invidia Downpipe Catted w/ O2 Bungs WRX (2008-2014) STI (2008-2018) BMW The HKS Exhaust Manifold is

The HKS Exhaust Manifold is the lower section only

In modified Subarus

Although it does its job

And no exhaust paste needed

two metal sleeve washers and two bolts

Invidia Downpipe Catted w/ O2 Bungs WRX (2008-2014) STI (2008-2018) BMW The HKS Exhaust Manifold isInvidia offers both catted and catless divorced style downpipes for the 2008 2014 WRX and 2008 2018 STI that are designed with a separator plate between the turbine and wastegate exhaust streams. Divorced style downpipes reduce exhaust turbulence for exceptional exhaust flow and performance. Every Invidia downpipe features 3" diameter stainless steel piping, 1 2" thick flanges, and a cast upper mouth section. Please note that without engine management