Product Description
Fitment Information:
2002-2005 Subaru WRX
2008-2014 Subaru WRX
2004-2021 Subaru STI
2005-2009 Subaru Legacy GT
Please note: DOES NOT FIT 06-07 WRX.
Features:
The Grimmspeed HiFlow Exhaust Manifold Crosspipe is made of 304 Stainless Steel including the flanges, flex, and tubing, and has a pipe-wall thickness of 14 Gauge unlike other pipes. This is the most heavy-duty pipe you will find in the aftermarket. 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. The insides of the flanges are cut back to allow the pipe to rest inside the flange which gives you a nice flush mating surface, allowing for optimal flow through the pipe.
This Crosspipe is available in a nice brushed finish, or in the amazing Ceramic Heat Coating which helps keep the heat in and speed up those exhaust gasses even more.
Finish: Brushed (Uncoated) or Black ceramic coated
304 Stainless Steel construction
14-Gauge pipe wall thickness
1.92" inch piping diameter
Boost transition is improved over stock
Improves the airflow in the mid to high RPM range
Heavy Duty GrimmSpeed Gaskets are included
Flex Joint is "Tuned-Bellow" with Interlocking Liner
Pipe to Flange Connection: Cut-Back flange allows much smoother connection; Piping is flush with flange so there is no step into the pipe
Flanges: 1/2" 304 Stainless Steel CNC Milled; All 3 sides are milled for precise tolerances in manufacturing
5-8 HP increase
Sold individually
Usually ships same or next day. 
