GrimmSpeed HiFlow Exhaust Manifold Crosspipe WRX / STI

Description:
The GrimmSpeed Subaru 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.


Features:
- Material = 1.92" 303 Stainless Steel
- Boost transition is improved overstock
- Helps airflow in the mid to high rpm range

Includes:
- 1 x GrimmSpeed Crosspipe
- 2 x Crosspipe GrimmSpeed Gaskets
- New Hardware Kit

Applications:
2002-2005 WRX
2004-2007 STI
2008-2014 WRX
2008-2014 STI
2015-2021 STI