GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated Subaru Models (inc. 2002-2005 2008-2014

The GrimmSpeed HiFlow Crosspipe is made of 304 Stainless Steel (flanges, flex, tubing) and has a pipe-wall thickness of 14 Gauge, this is the most "heavy-duty" pipe you will find in the aftermarket. Many other pipes use cheap thin steel and are marketed as "super light weight", not us. The one of a kind Triple Layer Flex Joint is not located in the bend, which adds to the life expectancy of the flex section. This unit is built from 1.92" 304 Stainless Steel tubing, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response. Boost transition is improved over stock. Helps airflow in the mid to high rpm range. Black Ceramic Thermal Coating.