Product Description
Fitment Information:
2006-2007 Subaru WRX
2004-2008 Subaru Forester XT
Features:
The GrimmSpeed HiFlow Exhaust Manifold Crosspipe was developed specifically for the Subaru WRX 06-07 and Forester XT 04-08 to optimize exhaust gas flow. 50% of the exhaust gases pass through the narrow OEM pipe, which can create challenges in performance if not addressed properly. To ensure reliability, GrimmSpeed uses high grade components in their product fabrication, and their expertise in this area ensures a superior, high-performance solution.
This GrimmSpeed Crosspipe is constructed out of 304 Stainless Steel including the flanges, flex, and tubing. It has a pipe-wall thickness of 14 Gauge, which is the most "heavy-duty" aftermarket pipe yet made. 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-inch 304 Stainless Steel tubing, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response.
Available in the uncoated brushed finish or black ceramic coated finish
304 Stainless Steel construction
14-gauge pipe wall thickness
1.92" inch piping diameter
Maximizes the exhaust flow from cylinders 1 and 4 to the manifold collector for a faster turbo response
Boost transition is improved over stock
Improves the airflow in the mid- to high-RPM range
Heavy Duty GrimmSpeed Gaskets are included
Installation hardware is included
Usually ships within 6 days. 
